text: /*!
   * Socket.IO v3.0.3
   * (c) 2014-2020 Guillermo Rauch
   * Released under the MIT License.
   */
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  		module.exports = factory();
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  		define([], factory);
  	else if(typeof exports === 'object')
  		exports["io"] = factory();
  	else
  		root["io"] = factory();
  })((() => {
        if (typeof self !== 'undefined') {
            return self;
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            return window;
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  /***/ "./build/index.js":
  /*!************************!*\
    !*** ./build/index.js ***!
    \************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.Socket = exports.io = exports.Manager = exports.protocol = void 0;
  
  var url_1 = __webpack_require__(/*! ./url */ "./build/url.js");
  
  var manager_1 = __webpack_require__(/*! ./manager */ "./build/manager.js");
  
  var socket_1 = __webpack_require__(/*! ./socket */ "./build/socket.js");
  
  Object.defineProperty(exports, "Socket", {
    enumerable: true,
    get: function get() {
      return socket_1.Socket;
    }
  });
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client");
  /**
   * Module exports.
   */
  
  
  module.exports = exports = lookup;
  /**
   * Managers cache.
   */
  
  var cache = exports.managers = {};
  
  function lookup(uri, opts) {
    if (_typeof(uri) === "object") {
      opts = uri;
      uri = undefined;
    }
  
    opts = opts || {};
    var parsed = url_1.url(uri);
    var source = parsed.source;
    var id = parsed.id;
    var path = parsed.path;
    var sameNamespace = cache[id] && path in cache[id].nsps;
    var newConnection = opts.forceNew || opts["force new connection"] || false === opts.multiplex || sameNamespace;
    var io;
  
    if (newConnection) {
      debug("ignoring socket cache for %s", source);
      io = new manager_1.Manager(source, opts);
    } else {
      if (!cache[id]) {
        debug("new io instance for %s", source);
        cache[id] = new manager_1.Manager(source, opts);
      }
  
      io = cache[id];
    }
  
    if (parsed.query && !opts.query) {
      opts.query = parsed.query;
    }
  
    return io.socket(parsed.path, opts);
  }
  
  exports.io = lookup;
  /**
   * Protocol version.
   *
   * @public
   */
  
  var socket_io_parser_1 = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-parser/dist/index.js");
  
  Object.defineProperty(exports, "protocol", {
    enumerable: true,
    get: function get() {
      return socket_io_parser_1.protocol;
    }
  });
  /**
   * `connect`.
   *
   * @param {String} uri
   * @public
   */
  
  exports.connect = lookup;
  /**
   * Expose constructors for standalone build.
   *
   * @public
   */
  
  var manager_2 = __webpack_require__(/*! ./manager */ "./build/manager.js");
  
  Object.defineProperty(exports, "Manager", {
    enumerable: true,
    get: function get() {
      return manager_2.Manager;
    }
  });
  
  /***/ }),
  
  /***/ "./build/manager.js":
  /*!**************************!*\
    !*** ./build/manager.js ***!
    \**************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
  
  function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.Manager = void 0;
  
  var eio = __webpack_require__(/*! engine.io-client */ "./node_modules/engine.io-client/lib/index.js");
  
  var socket_1 = __webpack_require__(/*! ./socket */ "./build/socket.js");
  
  var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
  
  var parser = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-parser/dist/index.js");
  
  var on_1 = __webpack_require__(/*! ./on */ "./build/on.js");
  
  var bind = __webpack_require__(/*! component-bind */ "./node_modules/component-bind/index.js");
  
  var Backoff = __webpack_require__(/*! backo2 */ "./node_modules/backo2/index.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client:manager");
  
  var Manager = /*#__PURE__*/function (_Emitter) {
    _inherits(Manager, _Emitter);
  
    var _super = _createSuper(Manager);
  
    function Manager(uri, opts) {
      var _this;
  
      _classCallCheck(this, Manager);
  
      _this = _super.call(this);
      _this.nsps = {};
      _this.subs = [];
      _this.connecting = [];
  
      if (uri && "object" === _typeof(uri)) {
        opts = uri;
        uri = undefined;
      }
  
      opts = opts || {};
      opts.path = opts.path || "/socket.io";
      _this.opts = opts;
  
      _this.reconnection(opts.reconnection !== false);
  
      _this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
  
      _this.reconnectionDelay(opts.reconnectionDelay || 1000);
  
      _this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
  
      _this.randomizationFactor(opts.randomizationFactor || 0.5);
  
      _this.backoff = new Backoff({
        min: _this.reconnectionDelay(),
        max: _this.reconnectionDelayMax(),
        jitter: _this.randomizationFactor()
      });
  
      _this.timeout(null == opts.timeout ? 20000 : opts.timeout);
  
      _this._readyState = "closed";
      _this.uri = uri;
  
      var _parser = opts.parser || parser;
  
      _this.encoder = new _parser.Encoder();
      _this.decoder = new _parser.Decoder();
      _this._autoConnect = opts.autoConnect !== false;
      if (_this._autoConnect) _this.open();
      return _this;
    }
  
    _createClass(Manager, [{
      key: "reconnection",
      value: function reconnection(v) {
        if (!arguments.length) return this._reconnection;
        this._reconnection = !!v;
        return this;
      }
    }, {
      key: "reconnectionAttempts",
      value: function reconnectionAttempts(v) {
        if (v === undefined) return this._reconnectionAttempts;
        this._reconnectionAttempts = v;
        return this;
      }
    }, {
      key: "reconnectionDelay",
      value: function reconnectionDelay(v) {
        if (v === undefined) return this._reconnectionDelay;
        this._reconnectionDelay = v;
        this.backoff && this.backoff.setMin(v);
        return this;
      }
    }, {
      key: "randomizationFactor",
      value: function randomizationFactor(v) {
        if (v === undefined) return this._randomizationFactor;
        this._randomizationFactor = v;
        this.backoff && this.backoff.setJitter(v);
        return this;
      }
    }, {
      key: "reconnectionDelayMax",
      value: function reconnectionDelayMax(v) {
        if (v === undefined) return this._reconnectionDelayMax;
        this._reconnectionDelayMax = v;
        this.backoff && this.backoff.setMax(v);
        return this;
      }
    }, {
      key: "timeout",
      value: function timeout(v) {
        if (!arguments.length) return this._timeout;
        this._timeout = v;
        return this;
      }
      /**
       * Starts trying to reconnect if reconnection is enabled and we have not
       * started reconnecting yet
       *
       * @private
       */
  
    }, {
      key: "maybeReconnectOnOpen",
      value: function maybeReconnectOnOpen() {
        // Only try to reconnect if it's the first time we're connecting
        if (!this._reconnecting && this._reconnection && this.backoff.attempts === 0) {
          // keeps reconnection from firing twice for the same reconnection loop
          this.reconnect();
        }
      }
      /**
       * Sets the current transport `socket`.
       *
       * @param {Function} fn - optional, callback
       * @return {Manager} self
       * @public
       */
  
    }, {
      key: "open",
      value: function open(fn) {
        var _this2 = this;
  
        debug("readyState %s", this._readyState);
        if (~this._readyState.indexOf("open")) return this;
        debug("opening %s", this.uri);
        this.engine = eio(this.uri, this.opts);
        var socket = this.engine;
        var self = this;
        this._readyState = "opening";
        this.skipReconnect = false; // emit `open`
  
        var openSub = on_1.on(socket, "open", function () {
          self.onopen();
          fn && fn();
        }); // emit `error`
  
        var errorSub = on_1.on(socket, "error", function (err) {
          debug("error");
          self.cleanup();
          self._readyState = "closed";
  
          _get(_getPrototypeOf(Manager.prototype), "emit", _this2).call(_this2, "error", err);
  
          if (fn) {
            fn(err);
          } else {
            // Only do this if there is no fn to handle the error
            self.maybeReconnectOnOpen();
          }
        });
  
        if (false !== this._timeout) {
          var timeout = this._timeout;
          debug("connect attempt will timeout after %d", timeout);
  
          if (timeout === 0) {
            openSub.destroy(); // prevents a race condition with the 'open' event
          } // set timer
  
  
          var timer = setTimeout(function () {
            debug("connect attempt timed out after %d", timeout);
            openSub.destroy();
            socket.close();
            socket.emit("error", new Error("timeout"));
          }, timeout);
          this.subs.push({
            destroy: function destroy() {
              clearTimeout(timer);
            }
          });
        }
  
        this.subs.push(openSub);
        this.subs.push(errorSub);
        return this;
      }
      /**
       * Alias for open()
       *
       * @return {Manager} self
       * @public
       */
  
    }, {
      key: "connect",
      value: function connect(fn) {
        return this.open(fn);
      }
      /**
       * Called upon transport open.
       *
       * @private
       */
  
    }, {
      key: "onopen",
      value: function onopen() {
        debug("open"); // clear old subs
  
        this.cleanup(); // mark as open
  
        this._readyState = "open";
  
        _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "open"); // add new subs
  
  
        var socket = this.engine;
        this.subs.push(on_1.on(socket, "data", bind(this, "ondata")));
        this.subs.push(on_1.on(socket, "ping", bind(this, "onping")));
        this.subs.push(on_1.on(socket, "error", bind(this, "onerror")));
        this.subs.push(on_1.on(socket, "close", bind(this, "onclose")));
        this.subs.push(on_1.on(this.decoder, "decoded", bind(this, "ondecoded")));
      }
      /**
       * Called upon a ping.
       *
       * @private
       */
  
    }, {
      key: "onping",
      value: function onping() {
        _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "ping");
      }
      /**
       * Called with data.
       *
       * @private
       */
  
    }, {
      key: "ondata",
      value: function ondata(data) {
        this.decoder.add(data);
      }
      /**
       * Called when parser fully decodes a packet.
       *
       * @private
       */
  
    }, {
      key: "ondecoded",
      value: function ondecoded(packet) {
        _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "packet", packet);
      }
      /**
       * Called upon socket error.
       *
       * @private
       */
  
    }, {
      key: "onerror",
      value: function onerror(err) {
        debug("error", err);
  
        _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "error", err);
      }
      /**
       * Creates a new socket for the given `nsp`.
       *
       * @return {Socket}
       * @public
       */
  
    }, {
      key: "socket",
      value: function socket(nsp, opts) {
        var socket = this.nsps[nsp];
  
        if (!socket) {
          socket = new socket_1.Socket(this, nsp, opts);
          this.nsps[nsp] = socket;
          var self = this;
          socket.on("connecting", onConnecting);
  
          if (this._autoConnect) {
            // manually call here since connecting event is fired before listening
            onConnecting();
          }
        }
  
        function onConnecting() {
          if (!~self.connecting.indexOf(socket)) {
            self.connecting.push(socket);
          }
        }
  
        return socket;
      }
      /**
       * Called upon a socket close.
       *
       * @param {Socket} socket
       * @private
       */
  
    }, {
      key: "_destroy",
      value: function _destroy(socket) {
        var index = this.connecting.indexOf(socket);
        if (~index) this.connecting.splice(index, 1);
        if (this.connecting.length) return;
  
        this._close();
      }
      /**
       * Writes a packet.
       *
       * @param {Object} packet
       * @private
       */
  
    }, {
      key: "_packet",
      value: function _packet(packet) {
        debug("writing packet %j", packet);
        if (packet.query && packet.type === 0) packet.nsp += "?" + packet.query;
        var encodedPackets = this.encoder.encode(packet);
  
        for (var i = 0; i < encodedPackets.length; i++) {
          this.engine.write(encodedPackets[i], packet.options);
        }
      }
      /**
       * Clean up transport subscriptions and packet buffer.
       *
       * @private
       */
  
    }, {
      key: "cleanup",
      value: function cleanup() {
        debug("cleanup");
        var subsLength = this.subs.length;
  
        for (var i = 0; i < subsLength; i++) {
          var sub = this.subs.shift();
          sub.destroy();
        }
  
        this.decoder.destroy();
      }
      /**
       * Close the current socket.
       *
       * @private
       */
  
    }, {
      key: "_close",
      value: function _close() {
        debug("disconnect");
        this.skipReconnect = true;
        this._reconnecting = false;
  
        if ("opening" === this._readyState) {
          // `onclose` will not fire because
          // an open event never happened
          this.cleanup();
        }
  
        this.backoff.reset();
        this._readyState = "closed";
        if (this.engine) this.engine.close();
      }
      /**
       * Alias for close()
       *
       * @private
       */
  
    }, {
      key: "disconnect",
      value: function disconnect() {
        return this._close();
      }
      /**
       * Called upon engine close.
       *
       * @private
       */
  
    }, {
      key: "onclose",
      value: function onclose(reason) {
        debug("onclose");
        this.cleanup();
        this.backoff.reset();
        this._readyState = "closed";
  
        _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "close", reason);
  
        if (this._reconnection && !this.skipReconnect) {
          this.reconnect();
        }
      }
      /**
       * Attempt a reconnection.
       *
       * @private
       */
  
    }, {
      key: "reconnect",
      value: function reconnect() {
        var _this3 = this;
  
        if (this._reconnecting || this.skipReconnect) return this;
        var self = this;
  
        if (this.backoff.attempts >= this._reconnectionAttempts) {
          debug("reconnect failed");
          this.backoff.reset();
  
          _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "reconnect_failed");
  
          this._reconnecting = false;
        } else {
          var delay = this.backoff.duration();
          debug("will wait %dms before reconnect attempt", delay);
          this._reconnecting = true;
          var timer = setTimeout(function () {
            if (self.skipReconnect) return;
            debug("attempting reconnect");
  
            _get(_getPrototypeOf(Manager.prototype), "emit", _this3).call(_this3, "reconnect_attempt", self.backoff.attempts); // check again for the case socket closed in above events
  
  
            if (self.skipReconnect) return;
            self.open(function (err) {
              if (err) {
                debug("reconnect attempt error");
                self._reconnecting = false;
                self.reconnect();
  
                _get(_getPrototypeOf(Manager.prototype), "emit", _this3).call(_this3, "reconnect_error", err);
              } else {
                debug("reconnect success");
                self.onreconnect();
              }
            });
          }, delay);
          this.subs.push({
            destroy: function destroy() {
              clearTimeout(timer);
            }
          });
        }
      }
      /**
       * Called upon successful reconnect.
       *
       * @private
       */
  
    }, {
      key: "onreconnect",
      value: function onreconnect() {
        var attempt = this.backoff.attempts;
        this._reconnecting = false;
        this.backoff.reset();
  
        _get(_getPrototypeOf(Manager.prototype), "emit", this).call(this, "reconnect", attempt);
      }
    }]);
  
    return Manager;
  }(Emitter);
  
  exports.Manager = Manager;
  
  /***/ }),
  
  /***/ "./build/on.js":
  /*!*********************!*\
    !*** ./build/on.js ***!
    \*********************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.on = void 0;
  
  function on(obj, ev, fn) {
    obj.on(ev, fn);
    return {
      destroy: function destroy() {
        obj.removeListener(ev, fn);
      }
    };
  }
  
  exports.on = on;
  
  /***/ }),
  
  /***/ "./build/socket.js":
  /*!*************************!*\
    !*** ./build/socket.js ***!
    \*************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
  
  function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
  
  function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
  
  function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.Socket = void 0;
  
  var socket_io_parser_1 = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-parser/dist/index.js");
  
  var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
  
  var on_1 = __webpack_require__(/*! ./on */ "./build/on.js");
  
  var bind = __webpack_require__(/*! component-bind */ "./node_modules/component-bind/index.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client:socket");
  /**
   * Internal events.
   * These events can't be emitted by the user.
   */
  
  
  var RESERVED_EVENTS = {
    connect: 1,
    connect_error: 1,
    disconnect: 1,
    disconnecting: 1,
    // EventEmitter reserved events: https://nodejs.org/api/events.html#events_event_newlistener
    newListener: 1,
    removeListener: 1
  };
  
  var Socket = /*#__PURE__*/function (_Emitter) {
    _inherits(Socket, _Emitter);
  
    var _super = _createSuper(Socket);
  
    /**
     * `Socket` constructor.
     *
     * @public
     */
    function Socket(io, nsp, opts) {
      var _this;
  
      _classCallCheck(this, Socket);
  
      _this = _super.call(this);
      _this.ids = 0;
      _this.acks = {};
      _this.receiveBuffer = [];
      _this.sendBuffer = [];
      _this.flags = {};
      _this.io = io;
      _this.nsp = nsp;
      _this.ids = 0;
      _this.acks = {};
      _this.receiveBuffer = [];
      _this.sendBuffer = [];
      _this.connected = false;
      _this.disconnected = true;
      _this.flags = {};
  
      if (opts && opts.auth) {
        _this.auth = opts.auth;
      }
  
      if (_this.io._autoConnect) _this.open();
      return _this;
    }
    /**
     * Subscribe to open, close and packet events
     *
     * @private
     */
  
  
    _createClass(Socket, [{
      key: "subEvents",
      value: function subEvents() {
        if (this.subs) return;
        var io = this.io;
        this.subs = [on_1.on(io, "open", bind(this, "onopen")), on_1.on(io, "packet", bind(this, "onpacket")), on_1.on(io, "close", bind(this, "onclose"))];
      }
      /**
       * "Opens" the socket.
       *
       * @public
       */
  
    }, {
      key: "connect",
      value: function connect() {
        if (this.connected) return this;
        this.subEvents();
        if (!this.io._reconnecting) this.io.open(); // ensure open
  
        if ("open" === this.io._readyState) this.onopen();
        return this;
      }
      /**
       * Alias for connect()
       */
  
    }, {
      key: "open",
      value: function open() {
        return this.connect();
      }
      /**
       * Sends a `message` event.
       *
       * @return {Socket} self
       * @public
       */
  
    }, {
      key: "send",
      value: function send() {
        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }
  
        args.unshift("message");
        this.emit.apply(this, args);
        return this;
      }
      /**
       * Override `emit`.
       * If the event is in `events`, it's emitted normally.
       *
       * @param {String} ev - event name
       * @return {Socket} self
       * @public
       */
  
    }, {
      key: "emit",
      value: function emit(ev) {
        if (RESERVED_EVENTS.hasOwnProperty(ev)) {
          throw new Error('"' + ev + '" is a reserved event name');
        }
  
        for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }
  
        args.unshift(ev);
        var packet = {
          type: socket_io_parser_1.PacketType.EVENT,
          data: args
        };
        packet.options = {};
        packet.options.compress = this.flags.compress !== false; // event ack callback
  
        if ("function" === typeof args[args.length - 1]) {
          debug("emitting packet with ack id %d", this.ids);
          this.acks[this.ids] = args.pop();
          packet.id = this.ids++;
        }
  
        var isTransportWritable = this.io.engine && this.io.engine.transport && this.io.engine.transport.writable;
        var discardPacket = this.flags["volatile"] && (!isTransportWritable || !this.connected);
  
        if (discardPacket) {
          debug("discard packet as the transport is not currently writable");
        } else if (this.connected) {
          this.packet(packet);
        } else {
          this.sendBuffer.push(packet);
        }
  
        this.flags = {};
        return this;
      }
      /**
       * Sends a packet.
       *
       * @param {Object} packet
       * @private
       */
  
    }, {
      key: "packet",
      value: function packet(_packet) {
        _packet.nsp = this.nsp;
  
        this.io._packet(_packet);
      }
      /**
       * Called upon engine `open`.
       *
       * @private
       */
  
    }, {
      key: "onopen",
      value: function onopen() {
        var _this2 = this;
  
        debug("transport is open - connecting");
  
        if (typeof this.auth == "function") {
          this.auth(function (data) {
            _this2.packet({
              type: socket_io_parser_1.PacketType.CONNECT,
              data: data
            });
          });
        } else {
          this.packet({
            type: socket_io_parser_1.PacketType.CONNECT,
            data: this.auth
          });
        }
      }
      /**
       * Called upon engine `close`.
       *
       * @param {String} reason
       * @private
       */
  
    }, {
      key: "onclose",
      value: function onclose(reason) {
        debug("close (%s)", reason);
        this.connected = false;
        this.disconnected = true;
        delete this.id;
  
        _get(_getPrototypeOf(Socket.prototype), "emit", this).call(this, "disconnect", reason);
      }
      /**
       * Called with socket packet.
       *
       * @param {Object} packet
       * @private
       */
  
    }, {
      key: "onpacket",
      value: function onpacket(packet) {
        var sameNamespace = packet.nsp === this.nsp;
        if (!sameNamespace) return;
  
        switch (packet.type) {
          case socket_io_parser_1.PacketType.CONNECT:
            var id = packet.data.sid;
            this.onconnect(id);
            break;
  
          case socket_io_parser_1.PacketType.EVENT:
            this.onevent(packet);
            break;
  
          case socket_io_parser_1.PacketType.BINARY_EVENT:
            this.onevent(packet);
            break;
  
          case socket_io_parser_1.PacketType.ACK:
            this.onack(packet);
            break;
  
          case socket_io_parser_1.PacketType.BINARY_ACK:
            this.onack(packet);
            break;
  
          case socket_io_parser_1.PacketType.DISCONNECT:
            this.ondisconnect();
            break;
  
          case socket_io_parser_1.PacketType.CONNECT_ERROR:
            var err = new Error(packet.data.message); // @ts-ignore
  
            err.data = packet.data.data;
  
            _get(_getPrototypeOf(Socket.prototype), "emit", this).call(this, "connect_error", err);
  
            break;
        }
      }
      /**
       * Called upon a server event.
       *
       * @param {Object} packet
       * @private
       */
  
    }, {
      key: "onevent",
      value: function onevent(packet) {
        var args = packet.data || [];
        debug("emitting event %j", args);
  
        if (null != packet.id) {
          debug("attaching ack callback to event");
          args.push(this.ack(packet.id));
        }
  
        if (this.connected) {
          this.emitEvent(args);
        } else {
          this.receiveBuffer.push(args);
        }
      }
    }, {
      key: "emitEvent",
      value: function emitEvent(args) {
        if (this._anyListeners && this._anyListeners.length) {
          var listeners = this._anyListeners.slice();
  
          var _iterator = _createForOfIteratorHelper(listeners),
              _step;
  
          try {
            for (_iterator.s(); !(_step = _iterator.n()).done;) {
              var listener = _step.value;
              listener.apply(this, args);
            }
          } catch (err) {
            _iterator.e(err);
          } finally {
            _iterator.f();
          }
        }
  
        _get(_getPrototypeOf(Socket.prototype), "emit", this).apply(this, args);
      }
      /**
       * Produces an ack callback to emit with an event.
       *
       * @private
       */
  
    }, {
      key: "ack",
      value: function ack(id) {
        var self = this;
        var sent = false;
        return function () {
          // prevent double callbacks
          if (sent) return;
          sent = true;
  
          for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
            args[_key3] = arguments[_key3];
          }
  
          debug("sending ack %j", args);
          self.packet({
            type: socket_io_parser_1.PacketType.ACK,
            id: id,
            data: args
          });
        };
      }
      /**
       * Called upon a server acknowlegement.
       *
       * @param {Object} packet
       * @private
       */
  
    }, {
      key: "onack",
      value: function onack(packet) {
        var ack = this.acks[packet.id];
  
        if ("function" === typeof ack) {
          debug("calling ack %s with %j", packet.id, packet.data);
          ack.apply(this, packet.data);
          delete this.acks[packet.id];
        } else {
          debug("bad ack %s", packet.id);
        }
      }
      /**
       * Called upon server connect.
       *
       * @private
       */
  
    }, {
      key: "onconnect",
      value: function onconnect(id) {
        this.id = id;
        this.connected = true;
        this.disconnected = false;
  
        _get(_getPrototypeOf(Socket.prototype), "emit", this).call(this, "connect");
  
        this.emitBuffered();
      }
      /**
       * Emit buffered events (received and emitted).
       *
       * @private
       */
  
    }, {
      key: "emitBuffered",
      value: function emitBuffered() {
        for (var i = 0; i < this.receiveBuffer.length; i++) {
          this.emitEvent(this.receiveBuffer[i]);
        }
  
        this.receiveBuffer = [];
  
        for (var _i = 0; _i < this.sendBuffer.length; _i++) {
          this.packet(this.sendBuffer[_i]);
        }
  
        this.sendBuffer = [];
      }
      /**
       * Called upon server disconnect.
       *
       * @private
       */
  
    }, {
      key: "ondisconnect",
      value: function ondisconnect() {
        debug("server disconnect (%s)", this.nsp);
        this.destroy();
        this.onclose("io server disconnect");
      }
      /**
       * Called upon forced client/server side disconnections,
       * this method ensures the manager stops tracking us and
       * that reconnections don't get triggered for this.
       *
       * @private
       */
  
    }, {
      key: "destroy",
      value: function destroy() {
        if (this.subs) {
          // clean subscriptions to avoid reconnections
          for (var i = 0; i < this.subs.length; i++) {
            this.subs[i].destroy();
          }
  
          this.subs = null;
        }
  
        this.io._destroy(this);
      }
      /**
       * Disconnects the socket manually.
       *
       * @return {Socket} self
       * @public
       */
  
    }, {
      key: "disconnect",
      value: function disconnect() {
        if (this.connected) {
          debug("performing disconnect (%s)", this.nsp);
          this.packet({
            type: socket_io_parser_1.PacketType.DISCONNECT
          });
        } // remove socket from pool
  
  
        this.destroy();
  
        if (this.connected) {
          // fire events
          this.onclose("io client disconnect");
        }
  
        return this;
      }
      /**
       * Alias for disconnect()
       *
       * @return {Socket} self
       * @public
       */
  
    }, {
      key: "close",
      value: function close() {
        return this.disconnect();
      }
      /**
       * Sets the compress flag.
       *
       * @param {Boolean} compress - if `true`, compresses the sending data
       * @return {Socket} self
       * @public
       */
  
    }, {
      key: "compress",
      value: function compress(_compress) {
        this.flags.compress = _compress;
        return this;
      }
      /**
       * Sets a modifier for a subsequent event emission that the event message will be dropped when this socket is not
       * ready to send messages.
       *
       * @returns {Socket} self
       * @public
       */
  
    }, {
      key: "onAny",
  
      /**
       * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
       * callback.
       *
       * @param listener
       * @public
       */
      value: function onAny(listener) {
        this._anyListeners = this._anyListeners || [];
  
        this._anyListeners.push(listener);
  
        return this;
      }
      /**
       * Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
       * callback. The listener is added to the beginning of the listeners array.
       *
       * @param listener
       * @public
       */
  
    }, {
      key: "prependAny",
      value: function prependAny(listener) {
        this._anyListeners = this._anyListeners || [];
  
        this._anyListeners.unshift(listener);
  
        return this;
      }
      /**
       * Removes the listener that will be fired when any event is emitted.
       *
       * @param listener
       * @public
       */
  
    }, {
      key: "offAny",
      value: function offAny(listener) {
        if (!this._anyListeners) {
          return this;
        }
  
        if (listener) {
          var listeners = this._anyListeners;
  
          for (var i = 0; i < listeners.length; i++) {
            if (listener === listeners[i]) {
              listeners.splice(i, 1);
              return this;
            }
          }
        } else {
          this._anyListeners = [];
        }
  
        return this;
      }
      /**
       * Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
       * e.g. to remove listeners.
       *
       * @public
       */
  
    }, {
      key: "listenersAny",
      value: function listenersAny() {
        return this._anyListeners || [];
      }
    }, {
      key: "volatile",
      get: function get() {
        this.flags["volatile"] = true;
        return this;
      }
    }]);
  
    return Socket;
  }(Emitter);
  
  exports.Socket = Socket;
  
  /***/ }),
  
  /***/ "./build/url.js":
  /*!**********************!*\
    !*** ./build/url.js ***!
    \**********************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.url = void 0;
  
  var parseuri = __webpack_require__(/*! parseuri */ "./node_modules/parseuri/index.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-client:url");
  /**
   * URL parser.
   *
   * @param {String} uri - url
   * @param {Object} loc - An object meant to mimic window.location.
   *                 Defaults to window.location.
   * @public
   */
  
  
  function url(uri, loc) {
    var obj = uri; // default to window.location
  
    loc = loc || typeof location !== "undefined" && location;
    if (null == uri) uri = loc.protocol + "//" + loc.host; // relative path support
  
    if ("string" === typeof uri) {
      if ("/" === uri.charAt(0)) {
        if ("/" === uri.charAt(1)) {
          uri = loc.protocol + uri;
        } else {
          uri = loc.host + uri;
        }
      }
  
      if (!/^(https?|wss?):\/\//.test(uri)) {
        debug("protocol-less url %s", uri);
  
        if ("undefined" !== typeof loc) {
          uri = loc.protocol + "//" + uri;
        } else {
          uri = "https://" + uri;
        }
      } // parse
  
  
      debug("parse %s", uri);
      obj = parseuri(uri);
    } // make sure we treat `localhost:80` and `localhost` equally
  
  
    if (!obj.port) {
      if (/^(http|ws)$/.test(obj.protocol)) {
        obj.port = "80";
      } else if (/^(http|ws)s$/.test(obj.protocol)) {
        obj.port = "443";
      }
    }
  
    obj.path = obj.path || "/";
    var ipv6 = obj.host.indexOf(":") !== -1;
    var host = ipv6 ? "[" + obj.host + "]" : obj.host; // define unique id
  
    obj.id = obj.protocol + "://" + host + ":" + obj.port; // define href
  
    obj.href = obj.protocol + "://" + host + (loc && loc.port === obj.port ? "" : ":" + obj.port);
    return obj;
  }
  
  exports.url = url;
  
  /***/ }),
  
  /***/ "./node_modules/backo2/index.js":
  /*!**************************************!*\
    !*** ./node_modules/backo2/index.js ***!
    \**************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  /**
   * Expose `Backoff`.
   */
  module.exports = Backoff;
  /**
   * Initialize backoff timer with `opts`.
   *
   * - `min` initial timeout in milliseconds [100]
   * - `max` max timeout [10000]
   * - `jitter` [0]
   * - `factor` [2]
   *
   * @param {Object} opts
   * @api public
   */
  
  function Backoff(opts) {
    opts = opts || {};
    this.ms = opts.min || 100;
    this.max = opts.max || 10000;
    this.factor = opts.factor || 2;
    this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
    this.attempts = 0;
  }
  /**
   * Return the backoff duration.
   *
   * @return {Number}
   * @api public
   */
  
  
  Backoff.prototype.duration = function () {
    var ms = this.ms * Math.pow(this.factor, this.attempts++);
  
    if (this.jitter) {
      var rand = Math.random();
      var deviation = Math.floor(rand * this.jitter * ms);
      ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation;
    }
  
    return Math.min(ms, this.max) | 0;
  };
  /**
   * Reset the number of attempts.
   *
   * @api public
   */
  
  
  Backoff.prototype.reset = function () {
    this.attempts = 0;
  };
  /**
   * Set the minimum duration
   *
   * @api public
   */
  
  
  Backoff.prototype.setMin = function (min) {
    this.ms = min;
  };
  /**
   * Set the maximum duration
   *
   * @api public
   */
  
  
  Backoff.prototype.setMax = function (max) {
    this.max = max;
  };
  /**
   * Set the jitter
   *
   * @api public
   */
  
  
  Backoff.prototype.setJitter = function (jitter) {
    this.jitter = jitter;
  };
  
  /***/ }),
  
  /***/ "./node_modules/base64-arraybuffer/lib/base64-arraybuffer.js":
  /*!*******************************************************************!*\
    !*** ./node_modules/base64-arraybuffer/lib/base64-arraybuffer.js ***!
    \*******************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  /*
   * base64-arraybuffer
   * https://github.com/niklasvh/base64-arraybuffer
   *
   * Copyright (c) 2012 Niklas von Hertzen
   * Licensed under the MIT license.
   */
  (function () {
    "use strict";
  
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; // Use a lookup table to find the index.
  
    var lookup = new Uint8Array(256);
  
    for (var i = 0; i < chars.length; i++) {
      lookup[chars.charCodeAt(i)] = i;
    }
  
    exports.encode = function (arraybuffer) {
      var bytes = new Uint8Array(arraybuffer),
          i,
          len = bytes.length,
          base64 = "";
  
      for (i = 0; i < len; i += 3) {
        base64 += chars[bytes[i] >> 2];
        base64 += chars[(bytes[i] & 3) << 4 | bytes[i + 1] >> 4];
        base64 += chars[(bytes[i + 1] & 15) << 2 | bytes[i + 2] >> 6];
        base64 += chars[bytes[i + 2] & 63];
      }
  
      if (len % 3 === 2) {
        base64 = base64.substring(0, base64.length - 1) + "=";
      } else if (len % 3 === 1) {
        base64 = base64.substring(0, base64.length - 2) + "==";
      }
  
      return base64;
    };
  
    exports.decode = function (base64) {
      var bufferLength = base64.length * 0.75,
          len = base64.length,
          i,
          p = 0,
          encoded1,
          encoded2,
          encoded3,
          encoded4;
  
      if (base64[base64.length - 1] === "=") {
        bufferLength--;
  
        if (base64[base64.length - 2] === "=") {
          bufferLength--;
        }
      }
  
      var arraybuffer = new ArrayBuffer(bufferLength),
          bytes = new Uint8Array(arraybuffer);
  
      for (i = 0; i < len; i += 4) {
        encoded1 = lookup[base64.charCodeAt(i)];
        encoded2 = lookup[base64.charCodeAt(i + 1)];
        encoded3 = lookup[base64.charCodeAt(i + 2)];
        encoded4 = lookup[base64.charCodeAt(i + 3)];
        bytes[p++] = encoded1 << 2 | encoded2 >> 4;
        bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
        bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
      }
  
      return arraybuffer;
    };
  })();
  
  /***/ }),
  
  /***/ "./node_modules/component-bind/index.js":
  /*!**********************************************!*\
    !*** ./node_modules/component-bind/index.js ***!
    \**********************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  /**
   * Slice reference.
   */
  var slice = [].slice;
  /**
   * Bind `obj` to `fn`.
   *
   * @param {Object} obj
   * @param {Function|String} fn or string
   * @return {Function}
   * @api public
   */
  
  module.exports = function (obj, fn) {
    if ('string' == typeof fn) fn = obj[fn];
    if ('function' != typeof fn) throw new Error('bind() requires a function');
    var args = slice.call(arguments, 2);
    return function () {
      return fn.apply(obj, args.concat(slice.call(arguments)));
    };
  };
  
  /***/ }),
  
  /***/ "./node_modules/component-emitter/index.js":
  /*!*************************************************!*\
    !*** ./node_modules/component-emitter/index.js ***!
    \*************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  /**
   * Expose `Emitter`.
   */
  if (true) {
    module.exports = Emitter;
  }
  /**
   * Initialize a new `Emitter`.
   *
   * @api public
   */
  
  
  function Emitter(obj) {
    if (obj) return mixin(obj);
  }
  
  ;
  /**
   * Mixin the emitter properties.
   *
   * @param {Object} obj
   * @return {Object}
   * @api private
   */
  
  function mixin(obj) {
    for (var key in Emitter.prototype) {
      obj[key] = Emitter.prototype[key];
    }
  
    return obj;
  }
  /**
   * Listen on the given `event` with `fn`.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */
  
  
  Emitter.prototype.on = Emitter.prototype.addEventListener = function (event, fn) {
    this._callbacks = this._callbacks || {};
    (this._callbacks['$' + event] = this._callbacks['$' + event] || []).push(fn);
    return this;
  };
  /**
   * Adds an `event` listener that will be invoked a single
   * time then automatically removed.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */
  
  
  Emitter.prototype.once = function (event, fn) {
    function on() {
      this.off(event, on);
      fn.apply(this, arguments);
    }
  
    on.fn = fn;
    this.on(event, on);
    return this;
  };
  /**
   * Remove the given callback for `event` or all
   * registered callbacks.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */
  
  
  Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function (event, fn) {
    this._callbacks = this._callbacks || {}; // all
  
    if (0 == arguments.length) {
      this._callbacks = {};
      return this;
    } // specific event
  
  
    var callbacks = this._callbacks['$' + event];
    if (!callbacks) return this; // remove all handlers
  
    if (1 == arguments.length) {
      delete this._callbacks['$' + event];
      return this;
    } // remove specific handler
  
  
    var cb;
  
    for (var i = 0; i < callbacks.length; i++) {
      cb = callbacks[i];
  
      if (cb === fn || cb.fn === fn) {
        callbacks.splice(i, 1);
        break;
      }
    } // Remove event specific arrays for event types that no
    // one is subscribed for to avoid memory leak.
  
  
    if (callbacks.length === 0) {
      delete this._callbacks['$' + event];
    }
  
    return this;
  };
  /**
   * Emit `event` with the given args.
   *
   * @param {String} event
   * @param {Mixed} ...
   * @return {Emitter}
   */
  
  
  Emitter.prototype.emit = function (event) {
    this._callbacks = this._callbacks || {};
    var args = new Array(arguments.length - 1),
        callbacks = this._callbacks['$' + event];
  
    for (var i = 1; i < arguments.length; i++) {
      args[i - 1] = arguments[i];
    }
  
    if (callbacks) {
      callbacks = callbacks.slice(0);
  
      for (var i = 0, len = callbacks.length; i < len; ++i) {
        callbacks[i].apply(this, args);
      }
    }
  
    return this;
  };
  /**
   * Return array of callbacks for `event`.
   *
   * @param {String} event
   * @return {Array}
   * @api public
   */
  
  
  Emitter.prototype.listeners = function (event) {
    this._callbacks = this._callbacks || {};
    return this._callbacks['$' + event] || [];
  };
  /**
   * Check if this emitter has `event` handlers.
   *
   * @param {String} event
   * @return {Boolean}
   * @api public
   */
  
  
  Emitter.prototype.hasListeners = function (event) {
    return !!this.listeners(event).length;
  };
  
  /***/ }),
  
  /***/ "./node_modules/debug/src/browser.js":
  /*!*******************************************!*\
    !*** ./node_modules/debug/src/browser.js ***!
    \*******************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  /* WEBPACK VAR INJECTION */(function(process) {function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  /* eslint-env browser */
  
  /**
   * This is the web browser implementation of `debug()`.
   */
  exports.log = log;
  exports.formatArgs = formatArgs;
  exports.save = save;
  exports.load = load;
  exports.useColors = useColors;
  exports.storage = localstorage();
  /**
   * Colors.
   */
  
  exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
  /**
   * Currently only WebKit-based Web Inspectors, Firefox >= v31,
   * and the Firebug extension (any Firefox version) are known
   * to support "%c" CSS customizations.
   *
   * TODO: add a `localStorage` variable to explicitly enable/disable colors
   */
  // eslint-disable-next-line complexity
  
  function useColors() {
    // NB: In an Electron preload script, document will be defined but not fully
    // initialized. Since we know we're in Chrome, we'll just detect this case
    // explicitly
    if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
      return true;
    } // Internet Explorer and Edge do not support colors.
  
  
    if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
      return false;
    } // Is webkit? http://stackoverflow.com/a/16459606/376773
    // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
  
  
    return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || // Is firebug? http://stackoverflow.com/a/398120/376773
    typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || // Is firefox >= v31?
    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
    typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || // Double check webkit in userAgent just in case we are in a worker
    typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
  }
  /**
   * Colorize log arguments if enabled.
   *
   * @api public
   */
  
  
  function formatArgs(args) {
    args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);
  
    if (!this.useColors) {
      return;
    }
  
    var c = 'color: ' + this.color;
    args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
    // arguments passed either before or after the %c, so we need to
    // figure out the correct index to insert the CSS into
  
    var index = 0;
    var lastC = 0;
    args[0].replace(/%[a-zA-Z%]/g, function (match) {
      if (match === '%%') {
        return;
      }
  
      index++;
  
      if (match === '%c') {
        // We only are interested in the *last* %c
        // (the user may have provided their own)
        lastC = index;
      }
    });
    args.splice(lastC, 0, c);
  }
  /**
   * Invokes `console.log()` when available.
   * No-op when `console.log` is not a "function".
   *
   * @api public
   */
  
  
  function log() {
    var _console;
  
    // This hackery is required for IE8/9, where
    // the `console.log` function doesn't have 'apply'
    return (typeof console === "undefined" ? "undefined" : _typeof(console)) === 'object' && console.log && (_console = console).log.apply(_console, arguments);
  }
  /**
   * Save `namespaces`.
   *
   * @param {String} namespaces
   * @api private
   */
  
  
  function save(namespaces) {
    try {
      if (namespaces) {
        exports.storage.setItem('debug', namespaces);
      } else {
        exports.storage.removeItem('debug');
      }
    } catch (error) {// Swallow
      // XXX (@Qix-) should we be logging these?
    }
  }
  /**
   * Load `namespaces`.
   *
   * @return {String} returns the previously persisted debug modes
   * @api private
   */
  
  
  function load() {
    var r;
  
    try {
      r = exports.storage.getItem('debug');
    } catch (error) {// Swallow
      // XXX (@Qix-) should we be logging these?
    } // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
  
  
    if (!r && typeof process !== 'undefined' && 'env' in process) {
      r = process.env.DEBUG;
    }
  
    return r;
  }
  /**
   * Localstorage attempts to return the localstorage.
   *
   * This is necessary because safari throws
   * when a user disables cookies/localstorage
   * and you attempt to access it.
   *
   * @return {LocalStorage}
   * @api private
   */
  
  
  function localstorage() {
    try {
      // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
      // The Browser also has localStorage in the global context.
      return localStorage;
    } catch (error) {// Swallow
      // XXX (@Qix-) should we be logging these?
    }
  }
  
  module.exports = __webpack_require__(/*! ./common */ "./node_modules/debug/src/common.js")(exports);
  var formatters = module.exports.formatters;
  /**
   * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
   */
  
  formatters.j = function (v) {
    try {
      return JSON.stringify(v);
    } catch (error) {
      return '[UnexpectedJSONParseError]: ' + error.message;
    }
  };
  /* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../process/browser.js */ "./node_modules/process/browser.js")))
  
  /***/ }),
  
  /***/ "./node_modules/debug/src/common.js":
  /*!******************************************!*\
    !*** ./node_modules/debug/src/common.js ***!
    \******************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
  
  function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
  
  function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
  
  function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); }
  
  function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
  
  function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
  
  /**
   * This is the common logic for both the Node.js and web browser
   * implementations of `debug()`.
   */
  function setup(env) {
    createDebug.debug = createDebug;
    createDebug["default"] = createDebug;
    createDebug.coerce = coerce;
    createDebug.disable = disable;
    createDebug.enable = enable;
    createDebug.enabled = enabled;
    createDebug.humanize = __webpack_require__(/*! ms */ "./node_modules/ms/index.js");
    Object.keys(env).forEach(function (key) {
      createDebug[key] = env[key];
    });
    /**
    * Active `debug` instances.
    */
  
    createDebug.instances = [];
    /**
    * The currently active debug mode names, and names to skip.
    */
  
    createDebug.names = [];
    createDebug.skips = [];
    /**
    * Map of special "%n" handling functions, for the debug "format" argument.
    *
    * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
    */
  
    createDebug.formatters = {};
    /**
    * Selects a color for a debug namespace
    * @param {String} namespace The namespace string for the for the debug instance to be colored
    * @return {Number|String} An ANSI color code for the given namespace
    * @api private
    */
  
    function selectColor(namespace) {
      var hash = 0;
  
      for (var i = 0; i < namespace.length; i++) {
        hash = (hash << 5) - hash + namespace.charCodeAt(i);
        hash |= 0; // Convert to 32bit integer
      }
  
      return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
    }
  
    createDebug.selectColor = selectColor;
    /**
    * Create a debugger with the given `namespace`.
    *
    * @param {String} namespace
    * @return {Function}
    * @api public
    */
  
    function createDebug(namespace) {
      var prevTime;
  
      function debug() {
        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }
  
        // Disabled?
        if (!debug.enabled) {
          return;
        }
  
        var self = debug; // Set `diff` timestamp
  
        var curr = Number(new Date());
        var ms = curr - (prevTime || curr);
        self.diff = ms;
        self.prev = prevTime;
        self.curr = curr;
        prevTime = curr;
        args[0] = createDebug.coerce(args[0]);
  
        if (typeof args[0] !== 'string') {
          // Anything else let's inspect with %O
          args.unshift('%O');
        } // Apply any `formatters` transformations
  
  
        var index = 0;
        args[0] = args[0].replace(/%([a-zA-Z%])/g, function (match, format) {
          // If we encounter an escaped % then don't increase the array index
          if (match === '%%') {
            return match;
          }
  
          index++;
          var formatter = createDebug.formatters[format];
  
          if (typeof formatter === 'function') {
            var val = args[index];
            match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`
  
            args.splice(index, 1);
            index--;
          }
  
          return match;
        }); // Apply env-specific formatting (colors, etc.)
  
        createDebug.formatArgs.call(self, args);
        var logFn = self.log || createDebug.log;
        logFn.apply(self, args);
      }
  
      debug.namespace = namespace;
      debug.enabled = createDebug.enabled(namespace);
      debug.useColors = createDebug.useColors();
      debug.color = selectColor(namespace);
      debug.destroy = destroy;
      debug.extend = extend; // Debug.formatArgs = formatArgs;
      // debug.rawLog = rawLog;
      // env-specific initialization logic for debug instances
  
      if (typeof createDebug.init === 'function') {
        createDebug.init(debug);
      }
  
      createDebug.instances.push(debug);
      return debug;
    }
  
    function destroy() {
      var index = createDebug.instances.indexOf(this);
  
      if (index !== -1) {
        createDebug.instances.splice(index, 1);
        return true;
      }
  
      return false;
    }
  
    function extend(namespace, delimiter) {
      var newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
      newDebug.log = this.log;
      return newDebug;
    }
    /**
    * Enables a debug mode by namespaces. This can include modes
    * separated by a colon and wildcards.
    *
    * @param {String} namespaces
    * @api public
    */
  
  
    function enable(namespaces) {
      createDebug.save(namespaces);
      createDebug.names = [];
      createDebug.skips = [];
      var i;
      var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
      var len = split.length;
  
      for (i = 0; i < len; i++) {
        if (!split[i]) {
          // ignore empty strings
          continue;
        }
  
        namespaces = split[i].replace(/\*/g, '.*?');
  
        if (namespaces[0] === '-') {
          createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
        } else {
          createDebug.names.push(new RegExp('^' + namespaces + '$'));
        }
      }
  
      for (i = 0; i < createDebug.instances.length; i++) {
        var instance = createDebug.instances[i];
        instance.enabled = createDebug.enabled(instance.namespace);
      }
    }
    /**
    * Disable debug output.
    *
    * @return {String} namespaces
    * @api public
    */
  
  
    function disable() {
      var namespaces = [].concat(_toConsumableArray(createDebug.names.map(toNamespace)), _toConsumableArray(createDebug.skips.map(toNamespace).map(function (namespace) {
        return '-' + namespace;
      }))).join(',');
      createDebug.enable('');
      return namespaces;
    }
    /**
    * Returns true if the given mode name is enabled, false otherwise.
    *
    * @param {String} name
    * @return {Boolean}
    * @api public
    */
  
  
    function enabled(name) {
      if (name[name.length - 1] === '*') {
        return true;
      }
  
      var i;
      var len;
  
      for (i = 0, len = createDebug.skips.length; i < len; i++) {
        if (createDebug.skips[i].test(name)) {
          return false;
        }
      }
  
      for (i = 0, len = createDebug.names.length; i < len; i++) {
        if (createDebug.names[i].test(name)) {
          return true;
        }
      }
  
      return false;
    }
    /**
    * Convert regexp to namespace
    *
    * @param {RegExp} regxep
    * @return {String} namespace
    * @api private
    */
  
  
    function toNamespace(regexp) {
      return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
    }
    /**
    * Coerce `val`.
    *
    * @param {Mixed} val
    * @return {Mixed}
    * @api private
    */
  
  
    function coerce(val) {
      if (val instanceof Error) {
        return val.stack || val.message;
      }
  
      return val;
    }
  
    createDebug.enable(createDebug.load());
    return createDebug;
  }
  
  module.exports = setup;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/globalThis.browser.js":
  /*!*****************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/globalThis.browser.js ***!
    \*****************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  module.exports = function () {
    if (typeof self !== "undefined") {
      return self;
    } else if (typeof window !== "undefined") {
      return window;
    } else {
      return Function("return this")();
    }
  }();
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/index.js":
  /*!****************************************************!*\
    !*** ./node_modules/engine.io-client/lib/index.js ***!
    \****************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  var Socket = __webpack_require__(/*! ./socket */ "./node_modules/engine.io-client/lib/socket.js");
  
  module.exports = function (uri, opts) {
    return new Socket(uri, opts);
  };
  /**
   * Expose deps for legacy compatibility
   * and standalone browser access.
   */
  
  
  module.exports.Socket = Socket;
  module.exports.protocol = Socket.protocol; // this is an int
  
  module.exports.Transport = __webpack_require__(/*! ./transport */ "./node_modules/engine.io-client/lib/transport.js");
  module.exports.transports = __webpack_require__(/*! ./transports/index */ "./node_modules/engine.io-client/lib/transports/index.js");
  module.exports.parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/socket.js":
  /*!*****************************************************!*\
    !*** ./node_modules/engine.io-client/lib/socket.js ***!
    \*****************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  var transports = __webpack_require__(/*! ./transports/index */ "./node_modules/engine.io-client/lib/transports/index.js");
  
  var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("engine.io-client:socket");
  
  var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
  
  var parseuri = __webpack_require__(/*! parseuri */ "./node_modules/parseuri/index.js");
  
  var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
  
  var Socket = /*#__PURE__*/function (_Emitter) {
    _inherits(Socket, _Emitter);
  
    var _super = _createSuper(Socket);
  
    /**
     * Socket constructor.
     *
     * @param {String|Object} uri or options
     * @param {Object} options
     * @api public
     */
    function Socket(uri) {
      var _this;
  
      var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  
      _classCallCheck(this, Socket);
  
      _this = _super.call(this);
  
      if (uri && "object" === _typeof(uri)) {
        opts = uri;
        uri = null;
      }
  
      if (uri) {
        uri = parseuri(uri);
        opts.hostname = uri.host;
        opts.secure = uri.protocol === "https" || uri.protocol === "wss";
        opts.port = uri.port;
        if (uri.query) opts.query = uri.query;
      } else if (opts.host) {
        opts.hostname = parseuri(opts.host).host;
      }
  
      _this.secure = null != opts.secure ? opts.secure : typeof location !== "undefined" && "https:" === location.protocol;
  
      if (opts.hostname && !opts.port) {
        // if no port is specified manually, use the protocol default
        opts.port = _this.secure ? "443" : "80";
      }
  
      _this.hostname = opts.hostname || (typeof location !== "undefined" ? location.hostname : "localhost");
      _this.port = opts.port || (typeof location !== "undefined" && location.port ? location.port : _this.secure ? 443 : 80);
      _this.transports = opts.transports || ["polling", "websocket"];
      _this.readyState = "";
      _this.writeBuffer = [];
      _this.prevBufferLen = 0;
      _this.opts = _extends({
        path: "/engine.io",
        agent: false,
        withCredentials: false,
        upgrade: true,
        jsonp: true,
        timestampParam: "t",
        policyPort: 843,
        rememberUpgrade: false,
        rejectUnauthorized: true,
        perMessageDeflate: {
          threshold: 1024
        },
        transportOptions: {}
      }, opts);
      _this.opts.path = _this.opts.path.replace(/\/$/, "") + "/";
  
      if (typeof _this.opts.query === "string") {
        _this.opts.query = parseqs.decode(_this.opts.query);
      } // set on handshake
  
  
      _this.id = null;
      _this.upgrades = null;
      _this.pingInterval = null;
      _this.pingTimeout = null; // set on heartbeat
  
      _this.pingTimeoutTimer = null;
  
      _this.open();
  
      return _this;
    }
    /**
     * Creates transport of the given type.
     *
     * @param {String} transport name
     * @return {Transport}
     * @api private
     */
  
  
    _createClass(Socket, [{
      key: "createTransport",
      value: function createTransport(name) {
        debug('creating transport "%s"', name);
        var query = clone(this.opts.query); // append engine.io protocol identifier
  
        query.EIO = parser.protocol; // transport name
  
        query.transport = name; // session id if we already have one
  
        if (this.id) query.sid = this.id;
  
        var opts = _extends({}, this.opts.transportOptions[name], this.opts, {
          query: query,
          socket: this,
          hostname: this.hostname,
          secure: this.secure,
          port: this.port
        });
  
        debug("options: %j", opts);
        return new transports[name](opts);
      }
      /**
       * Initializes transport to use and starts probe.
       *
       * @api private
       */
  
    }, {
      key: "open",
      value: function open() {
        var transport;
  
        if (this.opts.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1) {
          transport = "websocket";
        } else if (0 === this.transports.length) {
          // Emit error on next tick so it can be listened to
          var self = this;
          setTimeout(function () {
            self.emit("error", "No transports available");
          }, 0);
          return;
        } else {
          transport = this.transports[0];
        }
  
        this.readyState = "opening"; // Retry with the next transport if the transport is disabled (jsonp: false)
  
        try {
          transport = this.createTransport(transport);
        } catch (e) {
          debug("error while creating transport: %s", e);
          this.transports.shift();
          this.open();
          return;
        }
  
        transport.open();
        this.setTransport(transport);
      }
      /**
       * Sets the current transport. Disables the existing one (if any).
       *
       * @api private
       */
  
    }, {
      key: "setTransport",
      value: function setTransport(transport) {
        debug("setting transport %s", transport.name);
        var self = this;
  
        if (this.transport) {
          debug("clearing existing transport %s", this.transport.name);
          this.transport.removeAllListeners();
        } // set up transport
  
  
        this.transport = transport; // set up transport listeners
  
        transport.on("drain", function () {
          self.onDrain();
        }).on("packet", function (packet) {
          self.onPacket(packet);
        }).on("error", function (e) {
          self.onError(e);
        }).on("close", function () {
          self.onClose("transport close");
        });
      }
      /**
       * Probes a transport.
       *
       * @param {String} transport name
       * @api private
       */
  
    }, {
      key: "probe",
      value: function probe(name) {
        debug('probing transport "%s"', name);
        var transport = this.createTransport(name, {
          probe: 1
        });
        var failed = false;
        var self = this;
        Socket.priorWebsocketSuccess = false;
  
        function onTransportOpen() {
          if (self.onlyBinaryUpgrades) {
            var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
            failed = failed || upgradeLosesBinary;
          }
  
          if (failed) return;
          debug('probe transport "%s" opened', name);
          transport.send([{
            type: "ping",
            data: "probe"
          }]);
          transport.once("packet", function (msg) {
            if (failed) return;
  
            if ("pong" === msg.type && "probe" === msg.data) {
              debug('probe transport "%s" pong', name);
              self.upgrading = true;
              self.emit("upgrading", transport);
              if (!transport) return;
              Socket.priorWebsocketSuccess = "websocket" === transport.name;
              debug('pausing current transport "%s"', self.transport.name);
              self.transport.pause(function () {
                if (failed) return;
                if ("closed" === self.readyState) return;
                debug("changing transport and sending upgrade packet");
                cleanup();
                self.setTransport(transport);
                transport.send([{
                  type: "upgrade"
                }]);
                self.emit("upgrade", transport);
                transport = null;
                self.upgrading = false;
                self.flush();
              });
            } else {
              debug('probe transport "%s" failed', name);
              var err = new Error("probe error");
              err.transport = transport.name;
              self.emit("upgradeError", err);
            }
          });
        }
  
        function freezeTransport() {
          if (failed) return; // Any callback called by transport should be ignored since now
  
          failed = true;
          cleanup();
          transport.close();
          transport = null;
        } // Handle any error that happens while probing
  
  
        function onerror(err) {
          var error = new Error("probe error: " + err);
          error.transport = transport.name;
          freezeTransport();
          debug('probe transport "%s" failed because of error: %s', name, err);
          self.emit("upgradeError", error);
        }
  
        function onTransportClose() {
          onerror("transport closed");
        } // When the socket is closed while we're probing
  
  
        function onclose() {
          onerror("socket closed");
        } // When the socket is upgraded while we're probing
  
  
        function onupgrade(to) {
          if (transport && to.name !== transport.name) {
            debug('"%s" works - aborting "%s"', to.name, transport.name);
            freezeTransport();
          }
        } // Remove all listeners on the transport and on self
  
  
        function cleanup() {
          transport.removeListener("open", onTransportOpen);
          transport.removeListener("error", onerror);
          transport.removeListener("close", onTransportClose);
          self.removeListener("close", onclose);
          self.removeListener("upgrading", onupgrade);
        }
  
        transport.once("open", onTransportOpen);
        transport.once("error", onerror);
        transport.once("close", onTransportClose);
        this.once("close", onclose);
        this.once("upgrading", onupgrade);
        transport.open();
      }
      /**
       * Called when connection is deemed open.
       *
       * @api public
       */
  
    }, {
      key: "onOpen",
      value: function onOpen() {
        debug("socket open");
        this.readyState = "open";
        Socket.priorWebsocketSuccess = "websocket" === this.transport.name;
        this.emit("open");
        this.flush(); // we check for `readyState` in case an `open`
        // listener already closed the socket
  
        if ("open" === this.readyState && this.opts.upgrade && this.transport.pause) {
          debug("starting upgrade probes");
          var i = 0;
          var l = this.upgrades.length;
  
          for (; i < l; i++) {
            this.probe(this.upgrades[i]);
          }
        }
      }
      /**
       * Handles a packet.
       *
       * @api private
       */
  
    }, {
      key: "onPacket",
      value: function onPacket(packet) {
        if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
          debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
          this.emit("packet", packet); // Socket is live - any packet counts
  
          this.emit("heartbeat");
  
          switch (packet.type) {
            case "open":
              this.onHandshake(JSON.parse(packet.data));
              break;
  
            case "ping":
              this.resetPingTimeout();
              this.sendPacket("pong");
              this.emit("pong");
              break;
  
            case "error":
              var err = new Error("server error");
              err.code = packet.data;
              this.onError(err);
              break;
  
            case "message":
              this.emit("data", packet.data);
              this.emit("message", packet.data);
              break;
          }
        } else {
          debug('packet received with socket readyState "%s"', this.readyState);
        }
      }
      /**
       * Called upon handshake completion.
       *
       * @param {Object} handshake obj
       * @api private
       */
  
    }, {
      key: "onHandshake",
      value: function onHandshake(data) {
        this.emit("handshake", data);
        this.id = data.sid;
        this.transport.query.sid = data.sid;
        this.upgrades = this.filterUpgrades(data.upgrades);
        this.pingInterval = data.pingInterval;
        this.pingTimeout = data.pingTimeout;
        this.onOpen(); // In case open handler closes socket
  
        if ("closed" === this.readyState) return;
        this.resetPingTimeout();
      }
      /**
       * Sets and resets ping timeout timer based on server pings.
       *
       * @api private
       */
  
    }, {
      key: "resetPingTimeout",
      value: function resetPingTimeout() {
        var _this2 = this;
  
        clearTimeout(this.pingTimeoutTimer);
        this.pingTimeoutTimer = setTimeout(function () {
          _this2.onClose("ping timeout");
        }, this.pingInterval + this.pingTimeout);
      }
      /**
       * Called on `drain` event
       *
       * @api private
       */
  
    }, {
      key: "onDrain",
      value: function onDrain() {
        this.writeBuffer.splice(0, this.prevBufferLen); // setting prevBufferLen = 0 is very important
        // for example, when upgrading, upgrade packet is sent over,
        // and a nonzero prevBufferLen could cause problems on `drain`
  
        this.prevBufferLen = 0;
  
        if (0 === this.writeBuffer.length) {
          this.emit("drain");
        } else {
          this.flush();
        }
      }
      /**
       * Flush write buffers.
       *
       * @api private
       */
  
    }, {
      key: "flush",
      value: function flush() {
        if ("closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) {
          debug("flushing %d packets in socket", this.writeBuffer.length);
          this.transport.send(this.writeBuffer); // keep track of current length of writeBuffer
          // splice writeBuffer and callbackBuffer on `drain`
  
          this.prevBufferLen = this.writeBuffer.length;
          this.emit("flush");
        }
      }
      /**
       * Sends a message.
       *
       * @param {String} message.
       * @param {Function} callback function.
       * @param {Object} options.
       * @return {Socket} for chaining.
       * @api public
       */
  
    }, {
      key: "write",
      value: function write(msg, options, fn) {
        this.sendPacket("message", msg, options, fn);
        return this;
      }
    }, {
      key: "send",
      value: function send(msg, options, fn) {
        this.sendPacket("message", msg, options, fn);
        return this;
      }
      /**
       * Sends a packet.
       *
       * @param {String} packet type.
       * @param {String} data.
       * @param {Object} options.
       * @param {Function} callback function.
       * @api private
       */
  
    }, {
      key: "sendPacket",
      value: function sendPacket(type, data, options, fn) {
        if ("function" === typeof data) {
          fn = data;
          data = undefined;
        }
  
        if ("function" === typeof options) {
          fn = options;
          options = null;
        }
  
        if ("closing" === this.readyState || "closed" === this.readyState) {
          return;
        }
  
        options = options || {};
        options.compress = false !== options.compress;
        var packet = {
          type: type,
          data: data,
          options: options
        };
        this.emit("packetCreate", packet);
        this.writeBuffer.push(packet);
        if (fn) this.once("flush", fn);
        this.flush();
      }
      /**
       * Closes the connection.
       *
       * @api private
       */
  
    }, {
      key: "close",
      value: function close() {
        var self = this;
  
        if ("opening" === this.readyState || "open" === this.readyState) {
          this.readyState = "closing";
  
          if (this.writeBuffer.length) {
            this.once("drain", function () {
              if (this.upgrading) {
                waitForUpgrade();
              } else {
                close();
              }
            });
          } else if (this.upgrading) {
            waitForUpgrade();
          } else {
            close();
          }
        }
  
        function close() {
          self.onClose("forced close");
          debug("socket closing - telling transport to close");
          self.transport.close();
        }
  
        function cleanupAndClose() {
          self.removeListener("upgrade", cleanupAndClose);
          self.removeListener("upgradeError", cleanupAndClose);
          close();
        }
  
        function waitForUpgrade() {
          // wait for upgrade to finish since we can't send packets while pausing a transport
          self.once("upgrade", cleanupAndClose);
          self.once("upgradeError", cleanupAndClose);
        }
  
        return this;
      }
      /**
       * Called upon transport error
       *
       * @api private
       */
  
    }, {
      key: "onError",
      value: function onError(err) {
        debug("socket error %j", err);
        Socket.priorWebsocketSuccess = false;
        this.emit("error", err);
        this.onClose("transport error", err);
      }
      /**
       * Called upon transport close.
       *
       * @api private
       */
  
    }, {
      key: "onClose",
      value: function onClose(reason, desc) {
        if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
          debug('socket close with reason: "%s"', reason);
          var self = this; // clear timers
  
          clearTimeout(this.pingIntervalTimer);
          clearTimeout(this.pingTimeoutTimer); // stop event from firing again for transport
  
          this.transport.removeAllListeners("close"); // ensure transport won't stay open
  
          this.transport.close(); // ignore further transport communication
  
          this.transport.removeAllListeners(); // set ready state
  
          this.readyState = "closed"; // clear session id
  
          this.id = null; // emit close event
  
          this.emit("close", reason, desc); // clean buffers after, so users can still
          // grab the buffers on `close` event
  
          self.writeBuffer = [];
          self.prevBufferLen = 0;
        }
      }
      /**
       * Filters upgrades, returning only those matching client transports.
       *
       * @param {Array} server upgrades
       * @api private
       *
       */
  
    }, {
      key: "filterUpgrades",
      value: function filterUpgrades(upgrades) {
        var filteredUpgrades = [];
        var i = 0;
        var j = upgrades.length;
  
        for (; i < j; i++) {
          if (~this.transports.indexOf(upgrades[i])) filteredUpgrades.push(upgrades[i]);
        }
  
        return filteredUpgrades;
      }
    }]);
  
    return Socket;
  }(Emitter);
  
  Socket.priorWebsocketSuccess = false;
  /**
   * Protocol version.
   *
   * @api public
   */
  
  Socket.protocol = parser.protocol; // this is an int
  
  function clone(obj) {
    var o = {};
  
    for (var i in obj) {
      if (obj.hasOwnProperty(i)) {
        o[i] = obj[i];
      }
    }
  
    return o;
  }
  
  module.exports = Socket;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transport.js":
  /*!********************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transport.js ***!
    \********************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
  
  var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
  
  var Transport = /*#__PURE__*/function (_Emitter) {
    _inherits(Transport, _Emitter);
  
    var _super = _createSuper(Transport);
  
    /**
     * Transport abstract constructor.
     *
     * @param {Object} options.
     * @api private
     */
    function Transport(opts) {
      var _this;
  
      _classCallCheck(this, Transport);
  
      _this = _super.call(this);
      _this.opts = opts;
      _this.query = opts.query;
      _this.readyState = "";
      _this.socket = opts.socket;
      return _this;
    }
    /**
     * Emits an error.
     *
     * @param {String} str
     * @return {Transport} for chaining
     * @api public
     */
  
  
    _createClass(Transport, [{
      key: "onError",
      value: function onError(msg, desc) {
        var err = new Error(msg);
        err.type = "TransportError";
        err.description = desc;
        this.emit("error", err);
        return this;
      }
      /**
       * Opens the transport.
       *
       * @api public
       */
  
    }, {
      key: "open",
      value: function open() {
        if ("closed" === this.readyState || "" === this.readyState) {
          this.readyState = "opening";
          this.doOpen();
        }
  
        return this;
      }
      /**
       * Closes the transport.
       *
       * @api private
       */
  
    }, {
      key: "close",
      value: function close() {
        if ("opening" === this.readyState || "open" === this.readyState) {
          this.doClose();
          this.onClose();
        }
  
        return this;
      }
      /**
       * Sends multiple packets.
       *
       * @param {Array} packets
       * @api private
       */
  
    }, {
      key: "send",
      value: function send(packets) {
        if ("open" === this.readyState) {
          this.write(packets);
        } else {
          throw new Error("Transport not open");
        }
      }
      /**
       * Called upon open
       *
       * @api private
       */
  
    }, {
      key: "onOpen",
      value: function onOpen() {
        this.readyState = "open";
        this.writable = true;
        this.emit("open");
      }
      /**
       * Called with data.
       *
       * @param {String} data
       * @api private
       */
  
    }, {
      key: "onData",
      value: function onData(data) {
        var packet = parser.decodePacket(data, this.socket.binaryType);
        this.onPacket(packet);
      }
      /**
       * Called with a decoded packet.
       */
  
    }, {
      key: "onPacket",
      value: function onPacket(packet) {
        this.emit("packet", packet);
      }
      /**
       * Called upon close.
       *
       * @api private
       */
  
    }, {
      key: "onClose",
      value: function onClose() {
        this.readyState = "closed";
        this.emit("close");
      }
    }]);
  
    return Transport;
  }(Emitter);
  
  module.exports = Transport;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transports/index.js":
  /*!***************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transports/index.js ***!
    \***************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/engine.io-client/lib/xmlhttprequest.js");
  
  var XHR = __webpack_require__(/*! ./polling-xhr */ "./node_modules/engine.io-client/lib/transports/polling-xhr.js");
  
  var JSONP = __webpack_require__(/*! ./polling-jsonp */ "./node_modules/engine.io-client/lib/transports/polling-jsonp.js");
  
  var websocket = __webpack_require__(/*! ./websocket */ "./node_modules/engine.io-client/lib/transports/websocket.js");
  
  exports.polling = polling;
  exports.websocket = websocket;
  /**
   * Polling transport polymorphic constructor.
   * Decides on xhr vs jsonp based on feature detection.
   *
   * @api private
   */
  
  function polling(opts) {
    var xhr;
    var xd = false;
    var xs = false;
    var jsonp = false !== opts.jsonp;
  
    if (typeof location !== "undefined") {
      var isSSL = "https:" === location.protocol;
      var port = location.port; // some user agents have empty `location.port`
  
      if (!port) {
        port = isSSL ? 443 : 80;
      }
  
      xd = opts.hostname !== location.hostname || port !== opts.port;
      xs = opts.secure !== isSSL;
    }
  
    opts.xdomain = xd;
    opts.xscheme = xs;
    xhr = new XMLHttpRequest(opts);
  
    if ("open" in xhr && !opts.forceJSONP) {
      return new XHR(opts);
    } else {
      if (!jsonp) throw new Error("JSONP disabled");
      return new JSONP(opts);
    }
  }
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transports/polling-jsonp.js":
  /*!***********************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transports/polling-jsonp.js ***!
    \***********************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
  
  function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  var Polling = __webpack_require__(/*! ./polling */ "./node_modules/engine.io-client/lib/transports/polling.js");
  
  var globalThis = __webpack_require__(/*! ../globalThis */ "./node_modules/engine.io-client/lib/globalThis.browser.js");
  
  var rNewline = /\n/g;
  var rEscapedNewline = /\\n/g;
  /**
   * Global JSONP callbacks.
   */
  
  var callbacks;
  /**
   * Noop.
   */
  
  function empty() {}
  
  var JSONPPolling = /*#__PURE__*/function (_Polling) {
    _inherits(JSONPPolling, _Polling);
  
    var _super = _createSuper(JSONPPolling);
  
    /**
     * JSONP Polling constructor.
     *
     * @param {Object} opts.
     * @api public
     */
    function JSONPPolling(opts) {
      var _this;
  
      _classCallCheck(this, JSONPPolling);
  
      _this = _super.call(this, opts);
      _this.query = _this.query || {}; // define global callbacks array if not present
      // we do this here (lazily) to avoid unneeded global pollution
  
      if (!callbacks) {
        // we need to consider multiple engines in the same page
        callbacks = globalThis.___eio = globalThis.___eio || [];
      } // callback identifier
  
  
      _this.index = callbacks.length; // add callback to jsonp global
  
      var self = _assertThisInitialized(_this);
  
      callbacks.push(function (msg) {
        self.onData(msg);
      }); // append to query string
  
      _this.query.j = _this.index; // prevent spurious errors from being emitted when the window is unloaded
  
      if (typeof addEventListener === "function") {
        addEventListener("beforeunload", function () {
          if (self.script) self.script.onerror = empty;
        }, false);
      }
  
      return _this;
    }
    /**
     * JSONP only supports binary as base64 encoded strings
     */
  
  
    _createClass(JSONPPolling, [{
      key: "doClose",
  
      /**
       * Closes the socket.
       *
       * @api private
       */
      value: function doClose() {
        if (this.script) {
          this.script.parentNode.removeChild(this.script);
          this.script = null;
        }
  
        if (this.form) {
          this.form.parentNode.removeChild(this.form);
          this.form = null;
          this.iframe = null;
        }
  
        _get(_getPrototypeOf(JSONPPolling.prototype), "doClose", this).call(this);
      }
      /**
       * Starts a poll cycle.
       *
       * @api private
       */
  
    }, {
      key: "doPoll",
      value: function doPoll() {
        var self = this;
        var script = document.createElement("script");
  
        if (this.script) {
          this.script.parentNode.removeChild(this.script);
          this.script = null;
        }
  
        script.async = true;
        script.src = this.uri();
  
        script.onerror = function (e) {
          self.onError("jsonp poll error", e);
        };
  
        var insertAt = document.getElementsByTagName("script")[0];
  
        if (insertAt) {
          insertAt.parentNode.insertBefore(script, insertAt);
        } else {
          (document.head || document.body).appendChild(script);
        }
  
        this.script = script;
        var isUAgecko = "undefined" !== typeof navigator && /gecko/i.test(navigator.userAgent);
  
        if (isUAgecko) {
          setTimeout(function () {
            var iframe = document.createElement("iframe");
            document.body.appendChild(iframe);
            document.body.removeChild(iframe);
          }, 100);
        }
      }
      /**
       * Writes with a hidden iframe.
       *
       * @param {String} data to send
       * @param {Function} called upon flush.
       * @api private
       */
  
    }, {
      key: "doWrite",
      value: function doWrite(data, fn) {
        var self = this;
        var iframe;
  
        if (!this.form) {
          var form = document.createElement("form");
          var area = document.createElement("textarea");
          var id = this.iframeId = "eio_iframe_" + this.index;
          form.className = "socketio";
          form.style.position = "absolute";
          form.style.top = "-1000px";
          form.style.left = "-1000px";
          form.target = id;
          form.method = "POST";
          form.setAttribute("accept-charset", "utf-8");
          area.name = "d";
          form.appendChild(area);
          document.body.appendChild(form);
          this.form = form;
          this.area = area;
        }
  
        this.form.action = this.uri();
  
        function complete() {
          initIframe();
          fn();
        }
  
        function initIframe() {
          if (self.iframe) {
            try {
              self.form.removeChild(self.iframe);
            } catch (e) {
              self.onError("jsonp polling iframe removal error", e);
            }
          }
  
          try {
            // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
            var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
            iframe = document.createElement(html);
          } catch (e) {
            iframe = document.createElement("iframe");
            iframe.name = self.iframeId;
            iframe.src = "javascript:0";
          }
  
          iframe.id = self.iframeId;
          self.form.appendChild(iframe);
          self.iframe = iframe;
        }
  
        initIframe(); // escape \n to prevent it from being converted into \r\n by some UAs
        // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
  
        data = data.replace(rEscapedNewline, "\\\n");
        this.area.value = data.replace(rNewline, "\\n");
  
        try {
          this.form.submit();
        } catch (e) {}
  
        if (this.iframe.attachEvent) {
          this.iframe.onreadystatechange = function () {
            if (self.iframe.readyState === "complete") {
              complete();
            }
          };
        } else {
          this.iframe.onload = complete;
        }
      }
    }, {
      key: "supportsBinary",
      get: function get() {
        return false;
      }
    }]);
  
    return JSONPPolling;
  }(Polling);
  
  module.exports = JSONPPolling;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transports/polling-xhr.js":
  /*!*********************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transports/polling-xhr.js ***!
    \*********************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  /* global attachEvent */
  var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/engine.io-client/lib/xmlhttprequest.js");
  
  var Polling = __webpack_require__(/*! ./polling */ "./node_modules/engine.io-client/lib/transports/polling.js");
  
  var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
  
  var _require = __webpack_require__(/*! ../util */ "./node_modules/engine.io-client/lib/util.js"),
      pick = _require.pick;
  
  var globalThis = __webpack_require__(/*! ../globalThis */ "./node_modules/engine.io-client/lib/globalThis.browser.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("engine.io-client:polling-xhr");
  /**
   * Empty function
   */
  
  
  function empty() {}
  
  var hasXHR2 = function () {
    var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/engine.io-client/lib/xmlhttprequest.js");
  
    var xhr = new XMLHttpRequest({
      xdomain: false
    });
    return null != xhr.responseType;
  }();
  
  var XHR = /*#__PURE__*/function (_Polling) {
    _inherits(XHR, _Polling);
  
    var _super = _createSuper(XHR);
  
    /**
     * XHR Polling constructor.
     *
     * @param {Object} opts
     * @api public
     */
    function XHR(opts) {
      var _this;
  
      _classCallCheck(this, XHR);
  
      _this = _super.call(this, opts);
  
      if (typeof location !== "undefined") {
        var isSSL = "https:" === location.protocol;
        var port = location.port; // some user agents have empty `location.port`
  
        if (!port) {
          port = isSSL ? 443 : 80;
        }
  
        _this.xd = typeof location !== "undefined" && opts.hostname !== location.hostname || port !== opts.port;
        _this.xs = opts.secure !== isSSL;
      }
      /**
       * XHR supports binary
       */
  
  
      var forceBase64 = opts && opts.forceBase64;
      _this.supportsBinary = hasXHR2 && !forceBase64;
      return _this;
    }
    /**
     * Creates a request.
     *
     * @param {String} method
     * @api private
     */
  
  
    _createClass(XHR, [{
      key: "request",
      value: function request() {
        var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  
        _extends(opts, {
          xd: this.xd,
          xs: this.xs
        }, this.opts);
  
        return new Request(this.uri(), opts);
      }
      /**
       * Sends data.
       *
       * @param {String} data to send.
       * @param {Function} called upon flush.
       * @api private
       */
  
    }, {
      key: "doWrite",
      value: function doWrite(data, fn) {
        var req = this.request({
          method: "POST",
          data: data
        });
        var self = this;
        req.on("success", fn);
        req.on("error", function (err) {
          self.onError("xhr post error", err);
        });
      }
      /**
       * Starts a poll cycle.
       *
       * @api private
       */
  
    }, {
      key: "doPoll",
      value: function doPoll() {
        debug("xhr poll");
        var req = this.request();
        var self = this;
        req.on("data", function (data) {
          self.onData(data);
        });
        req.on("error", function (err) {
          self.onError("xhr poll error", err);
        });
        this.pollXhr = req;
      }
    }]);
  
    return XHR;
  }(Polling);
  
  var Request = /*#__PURE__*/function (_Emitter) {
    _inherits(Request, _Emitter);
  
    var _super2 = _createSuper(Request);
  
    /**
     * Request constructor
     *
     * @param {Object} options
     * @api public
     */
    function Request(uri, opts) {
      var _this2;
  
      _classCallCheck(this, Request);
  
      _this2 = _super2.call(this);
      _this2.opts = opts;
      _this2.method = opts.method || "GET";
      _this2.uri = uri;
      _this2.async = false !== opts.async;
      _this2.data = undefined !== opts.data ? opts.data : null;
  
      _this2.create();
  
      return _this2;
    }
    /**
     * Creates the XHR object and sends the request.
     *
     * @api private
     */
  
  
    _createClass(Request, [{
      key: "create",
      value: function create() {
        var opts = pick(this.opts, "agent", "enablesXDR", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized");
        opts.xdomain = !!this.opts.xd;
        opts.xscheme = !!this.opts.xs;
        var xhr = this.xhr = new XMLHttpRequest(opts);
        var self = this;
  
        try {
          debug("xhr open %s: %s", this.method, this.uri);
          xhr.open(this.method, this.uri, this.async);
  
          try {
            if (this.opts.extraHeaders) {
              xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
  
              for (var i in this.opts.extraHeaders) {
                if (this.opts.extraHeaders.hasOwnProperty(i)) {
                  xhr.setRequestHeader(i, this.opts.extraHeaders[i]);
                }
              }
            }
          } catch (e) {}
  
          if ("POST" === this.method) {
            try {
              xhr.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
            } catch (e) {}
          }
  
          try {
            xhr.setRequestHeader("Accept", "*/*");
          } catch (e) {} // ie6 check
  
  
          if ("withCredentials" in xhr) {
            xhr.withCredentials = this.opts.withCredentials;
          }
  
          if (this.opts.requestTimeout) {
            xhr.timeout = this.opts.requestTimeout;
          }
  
          if (this.hasXDR()) {
            xhr.onload = function () {
              self.onLoad();
            };
  
            xhr.onerror = function () {
              self.onError(xhr.responseText);
            };
          } else {
            xhr.onreadystatechange = function () {
              if (4 !== xhr.readyState) return;
  
              if (200 === xhr.status || 1223 === xhr.status) {
                self.onLoad();
              } else {
                // make sure the `error` event handler that's user-set
                // does not throw in the same tick and gets caught here
                setTimeout(function () {
                  self.onError(typeof xhr.status === "number" ? xhr.status : 0);
                }, 0);
              }
            };
          }
  
          debug("xhr data %s", this.data);
          xhr.send(this.data);
        } catch (e) {
          // Need to defer since .create() is called directly from the constructor
          // and thus the 'error' event can only be only bound *after* this exception
          // occurs.  Therefore, also, we cannot throw here at all.
          setTimeout(function () {
            self.onError(e);
          }, 0);
          return;
        }
  
        if (typeof document !== "undefined") {
          this.index = Request.requestsCount++;
          Request.requests[this.index] = this;
        }
      }
      /**
       * Called upon successful response.
       *
       * @api private
       */
  
    }, {
      key: "onSuccess",
      value: function onSuccess() {
        this.emit("success");
        this.cleanup();
      }
      /**
       * Called if we have data.
       *
       * @api private
       */
  
    }, {
      key: "onData",
      value: function onData(data) {
        this.emit("data", data);
        this.onSuccess();
      }
      /**
       * Called upon error.
       *
       * @api private
       */
  
    }, {
      key: "onError",
      value: function onError(err) {
        this.emit("error", err);
        this.cleanup(true);
      }
      /**
       * Cleans up house.
       *
       * @api private
       */
  
    }, {
      key: "cleanup",
      value: function cleanup(fromError) {
        if ("undefined" === typeof this.xhr || null === this.xhr) {
          return;
        } // xmlhttprequest
  
  
        if (this.hasXDR()) {
          this.xhr.onload = this.xhr.onerror = empty;
        } else {
          this.xhr.onreadystatechange = empty;
        }
  
        if (fromError) {
          try {
            this.xhr.abort();
          } catch (e) {}
        }
  
        if (typeof document !== "undefined") {
          delete Request.requests[this.index];
        }
  
        this.xhr = null;
      }
      /**
       * Called upon load.
       *
       * @api private
       */
  
    }, {
      key: "onLoad",
      value: function onLoad() {
        var data = this.xhr.responseText;
  
        if (data !== null) {
          this.onData(data);
        }
      }
      /**
       * Check if it has XDomainRequest.
       *
       * @api private
       */
  
    }, {
      key: "hasXDR",
      value: function hasXDR() {
        return typeof XDomainRequest !== "undefined" && !this.xs && this.enablesXDR;
      }
      /**
       * Aborts the request.
       *
       * @api public
       */
  
    }, {
      key: "abort",
      value: function abort() {
        this.cleanup();
      }
    }]);
  
    return Request;
  }(Emitter);
  /**
   * Aborts pending requests when unloading the window. This is needed to prevent
   * memory leaks (e.g. when using IE) and to ensure that no spurious error is
   * emitted.
   */
  
  
  Request.requestsCount = 0;
  Request.requests = {};
  
  if (typeof document !== "undefined") {
    if (typeof attachEvent === "function") {
      attachEvent("onunload", unloadHandler);
    } else if (typeof addEventListener === "function") {
      var terminationEvent = "onpagehide" in globalThis ? "pagehide" : "unload";
      addEventListener(terminationEvent, unloadHandler, false);
    }
  }
  
  function unloadHandler() {
    for (var i in Request.requests) {
      if (Request.requests.hasOwnProperty(i)) {
        Request.requests[i].abort();
      }
    }
  }
  
  module.exports = XHR;
  module.exports.Request = Request;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transports/polling.js":
  /*!*****************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transports/polling.js ***!
    \*****************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  var Transport = __webpack_require__(/*! ../transport */ "./node_modules/engine.io-client/lib/transport.js");
  
  var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
  
  var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
  
  var yeast = __webpack_require__(/*! yeast */ "./node_modules/yeast/index.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("engine.io-client:polling");
  
  var Polling = /*#__PURE__*/function (_Transport) {
    _inherits(Polling, _Transport);
  
    var _super = _createSuper(Polling);
  
    function Polling() {
      _classCallCheck(this, Polling);
  
      return _super.apply(this, arguments);
    }
  
    _createClass(Polling, [{
      key: "doOpen",
  
      /**
       * Opens the socket (triggers polling). We write a PING message to determine
       * when the transport is open.
       *
       * @api private
       */
      value: function doOpen() {
        this.poll();
      }
      /**
       * Pauses polling.
       *
       * @param {Function} callback upon buffers are flushed and transport is paused
       * @api private
       */
  
    }, {
      key: "pause",
      value: function pause(onPause) {
        var self = this;
        this.readyState = "pausing";
  
        function pause() {
          debug("paused");
          self.readyState = "paused";
          onPause();
        }
  
        if (this.polling || !this.writable) {
          var total = 0;
  
          if (this.polling) {
            debug("we are currently polling - waiting to pause");
            total++;
            this.once("pollComplete", function () {
              debug("pre-pause polling complete");
              --total || pause();
            });
          }
  
          if (!this.writable) {
            debug("we are currently writing - waiting to pause");
            total++;
            this.once("drain", function () {
              debug("pre-pause writing complete");
              --total || pause();
            });
          }
        } else {
          pause();
        }
      }
      /**
       * Starts polling cycle.
       *
       * @api public
       */
  
    }, {
      key: "poll",
      value: function poll() {
        debug("polling");
        this.polling = true;
        this.doPoll();
        this.emit("poll");
      }
      /**
       * Overloads onData to detect payloads.
       *
       * @api private
       */
  
    }, {
      key: "onData",
      value: function onData(data) {
        var self = this;
        debug("polling got data %s", data);
  
        var callback = function callback(packet, index, total) {
          // if its the first message we consider the transport open
          if ("opening" === self.readyState && packet.type === "open") {
            self.onOpen();
          } // if its a close packet, we close the ongoing requests
  
  
          if ("close" === packet.type) {
            self.onClose();
            return false;
          } // otherwise bypass onData and handle the message
  
  
          self.onPacket(packet);
        }; // decode payload
  
  
        parser.decodePayload(data, this.socket.binaryType).forEach(callback); // if an event did not trigger closing
  
        if ("closed" !== this.readyState) {
          // if we got data we're not polling
          this.polling = false;
          this.emit("pollComplete");
  
          if ("open" === this.readyState) {
            this.poll();
          } else {
            debug('ignoring poll - transport state "%s"', this.readyState);
          }
        }
      }
      /**
       * For polling, send a close packet.
       *
       * @api private
       */
  
    }, {
      key: "doClose",
      value: function doClose() {
        var self = this;
  
        function close() {
          debug("writing close packet");
          self.write([{
            type: "close"
          }]);
        }
  
        if ("open" === this.readyState) {
          debug("transport open - closing");
          close();
        } else {
          // in case we're trying to close while
          // handshaking is in progress (GH-164)
          debug("transport not open - deferring close");
          this.once("open", close);
        }
      }
      /**
       * Writes a packets payload.
       *
       * @param {Array} data packets
       * @param {Function} drain callback
       * @api private
       */
  
    }, {
      key: "write",
      value: function write(packets) {
        var _this = this;
  
        this.writable = false;
        parser.encodePayload(packets, function (data) {
          _this.doWrite(data, function () {
            _this.writable = true;
  
            _this.emit("drain");
          });
        });
      }
      /**
       * Generates uri for connection.
       *
       * @api private
       */
  
    }, {
      key: "uri",
      value: function uri() {
        var query = this.query || {};
        var schema = this.opts.secure ? "https" : "http";
        var port = ""; // cache busting is forced
  
        if (false !== this.opts.timestampRequests) {
          query[this.opts.timestampParam] = yeast();
        }
  
        if (!this.supportsBinary && !query.sid) {
          query.b64 = 1;
        }
  
        query = parseqs.encode(query); // avoid port if default for schema
  
        if (this.opts.port && ("https" === schema && Number(this.opts.port) !== 443 || "http" === schema && Number(this.opts.port) !== 80)) {
          port = ":" + this.opts.port;
        } // prepend ? to query
  
  
        if (query.length) {
          query = "?" + query;
        }
  
        var ipv6 = this.opts.hostname.indexOf(":") !== -1;
        return schema + "://" + (ipv6 ? "[" + this.opts.hostname + "]" : this.opts.hostname) + port + this.opts.path + query;
      }
    }, {
      key: "name",
  
      /**
       * Transport name.
       */
      get: function get() {
        return "polling";
      }
    }]);
  
    return Polling;
  }(Transport);
  
  module.exports = Polling;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transports/websocket-constructor.browser.js":
  /*!***************************************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transports/websocket-constructor.browser.js ***!
    \***************************************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  var globalThis = __webpack_require__(/*! ../globalThis */ "./node_modules/engine.io-client/lib/globalThis.browser.js");
  
  module.exports = {
    WebSocket: globalThis.WebSocket || globalThis.MozWebSocket,
    usingBrowserWebSocket: true,
    defaultBinaryType: "arraybuffer"
  };
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/transports/websocket.js":
  /*!*******************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/transports/websocket.js ***!
    \*******************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  var Transport = __webpack_require__(/*! ../transport */ "./node_modules/engine.io-client/lib/transport.js");
  
  var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/index.js");
  
  var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
  
  var yeast = __webpack_require__(/*! yeast */ "./node_modules/yeast/index.js");
  
  var _require = __webpack_require__(/*! ../util */ "./node_modules/engine.io-client/lib/util.js"),
      pick = _require.pick;
  
  var _require2 = __webpack_require__(/*! ./websocket-constructor */ "./node_modules/engine.io-client/lib/transports/websocket-constructor.browser.js"),
      WebSocket = _require2.WebSocket,
      usingBrowserWebSocket = _require2.usingBrowserWebSocket,
      defaultBinaryType = _require2.defaultBinaryType;
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("engine.io-client:websocket"); // detect ReactNative environment
  
  
  var isReactNative = typeof navigator !== "undefined" && typeof navigator.product === "string" && navigator.product.toLowerCase() === "reactnative";
  
  var WS = /*#__PURE__*/function (_Transport) {
    _inherits(WS, _Transport);
  
    var _super = _createSuper(WS);
  
    /**
     * WebSocket transport constructor.
     *
     * @api {Object} connection options
     * @api public
     */
    function WS(opts) {
      var _this;
  
      _classCallCheck(this, WS);
  
      _this = _super.call(this, opts);
      _this.supportsBinary = !opts.forceBase64;
      return _this;
    }
    /**
     * Transport name.
     *
     * @api public
     */
  
  
    _createClass(WS, [{
      key: "doOpen",
  
      /**
       * Opens socket.
       *
       * @api private
       */
      value: function doOpen() {
        if (!this.check()) {
          // let probe timeout
          return;
        }
  
        var uri = this.uri();
        var protocols = this.opts.protocols; // React Native only supports the 'headers' option, and will print a warning if anything else is passed
  
        var opts = isReactNative ? {} : pick(this.opts, "agent", "perMessageDeflate", "pfx", "key", "passphrase", "cert", "ca", "ciphers", "rejectUnauthorized", "localAddress");
  
        if (this.opts.extraHeaders) {
          opts.headers = this.opts.extraHeaders;
        }
  
        try {
          this.ws = usingBrowserWebSocket && !isReactNative ? protocols ? new WebSocket(uri, protocols) : new WebSocket(uri) : new WebSocket(uri, protocols, opts);
        } catch (err) {
          return this.emit("error", err);
        }
  
        this.ws.binaryType = this.socket.binaryType || defaultBinaryType;
        this.addEventListeners();
      }
      /**
       * Adds event listeners to the socket
       *
       * @api private
       */
  
    }, {
      key: "addEventListeners",
      value: function addEventListeners() {
        var self = this;
  
        this.ws.onopen = function () {
          self.onOpen();
        };
  
        this.ws.onclose = function () {
          self.onClose();
        };
  
        this.ws.onmessage = function (ev) {
          self.onData(ev.data);
        };
  
        this.ws.onerror = function (e) {
          self.onError("websocket error", e);
        };
      }
      /**
       * Writes data to socket.
       *
       * @param {Array} array of packets.
       * @api private
       */
  
    }, {
      key: "write",
      value: function write(packets) {
        var self = this;
        this.writable = false; // encodePacket efficient as it uses WS framing
        // no need for encodePayload
  
        var total = packets.length;
        var i = 0;
        var l = total;
  
        for (; i < l; i++) {
          (function (packet) {
            parser.encodePacket(packet, self.supportsBinary, function (data) {
              // always create a new object (GH-437)
              var opts = {};
  
              if (!usingBrowserWebSocket) {
                if (packet.options) {
                  opts.compress = packet.options.compress;
                }
  
                if (self.opts.perMessageDeflate) {
                  var len = "string" === typeof data ? Buffer.byteLength(data) : data.length;
  
                  if (len < self.opts.perMessageDeflate.threshold) {
                    opts.compress = false;
                  }
                }
              } // Sometimes the websocket has already been closed but the browser didn't
              // have a chance of informing us about it yet, in that case send will
              // throw an error
  
  
              try {
                if (usingBrowserWebSocket) {
                  // TypeError is thrown when passing the second argument on Safari
                  self.ws.send(data);
                } else {
                  self.ws.send(data, opts);
                }
              } catch (e) {
                debug("websocket closed before onclose event");
              }
  
              --total || done();
            });
          })(packets[i]);
        }
  
        function done() {
          self.emit("flush"); // fake drain
          // defer to next tick to allow Socket to clear writeBuffer
  
          setTimeout(function () {
            self.writable = true;
            self.emit("drain");
          }, 0);
        }
      }
      /**
       * Called upon close
       *
       * @api private
       */
  
    }, {
      key: "onClose",
      value: function onClose() {
        Transport.prototype.onClose.call(this);
      }
      /**
       * Closes socket.
       *
       * @api private
       */
  
    }, {
      key: "doClose",
      value: function doClose() {
        if (typeof this.ws !== "undefined") {
          this.ws.close();
        }
      }
      /**
       * Generates uri for connection.
       *
       * @api private
       */
  
    }, {
      key: "uri",
      value: function uri() {
        var query = this.query || {};
        var schema = this.opts.secure ? "wss" : "ws";
        var port = ""; // avoid port if default for schema
  
        if (this.opts.port && ("wss" === schema && Number(this.opts.port) !== 443 || "ws" === schema && Number(this.opts.port) !== 80)) {
          port = ":" + this.opts.port;
        } // append timestamp to URI
  
  
        if (this.opts.timestampRequests) {
          query[this.opts.timestampParam] = yeast();
        } // communicate binary support capabilities
  
  
        if (!this.supportsBinary) {
          query.b64 = 1;
        }
  
        query = parseqs.encode(query); // prepend ? to query
  
        if (query.length) {
          query = "?" + query;
        }
  
        var ipv6 = this.opts.hostname.indexOf(":") !== -1;
        return schema + "://" + (ipv6 ? "[" + this.opts.hostname + "]" : this.opts.hostname) + port + this.opts.path + query;
      }
      /**
       * Feature detection for WebSocket.
       *
       * @return {Boolean} whether this transport is available.
       * @api public
       */
  
    }, {
      key: "check",
      value: function check() {
        return !!WebSocket && !("__initialize" in WebSocket && this.name === WS.prototype.name);
      }
    }, {
      key: "name",
      get: function get() {
        return "websocket";
      }
    }]);
  
    return WS;
  }(Transport);
  
  module.exports = WS;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/util.js":
  /*!***************************************************!*\
    !*** ./node_modules/engine.io-client/lib/util.js ***!
    \***************************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  module.exports.pick = function (obj) {
    for (var _len = arguments.length, attr = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      attr[_key - 1] = arguments[_key];
    }
  
    return attr.reduce(function (acc, k) {
      acc[k] = obj[k];
      return acc;
    }, {});
  };
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-client/lib/xmlhttprequest.js":
  /*!*************************************************************!*\
    !*** ./node_modules/engine.io-client/lib/xmlhttprequest.js ***!
    \*************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  // browser shim for xmlhttprequest module
  var hasCORS = __webpack_require__(/*! has-cors */ "./node_modules/has-cors/index.js");
  
  var globalThis = __webpack_require__(/*! ./globalThis */ "./node_modules/engine.io-client/lib/globalThis.browser.js");
  
  module.exports = function (opts) {
    var xdomain = opts.xdomain; // scheme must be same when usign XDomainRequest
    // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
  
    var xscheme = opts.xscheme; // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
    // https://github.com/Automattic/engine.io-client/pull/217
  
    var enablesXDR = opts.enablesXDR; // XMLHttpRequest can be disabled on IE
  
    try {
      if ("undefined" !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
        return new XMLHttpRequest();
      }
    } catch (e) {} // Use XDomainRequest for IE8 if enablesXDR is true
    // because loading bar keeps flashing when using jsonp-polling
    // https://github.com/yujiosaka/socke.io-ie8-loading-example
  
  
    try {
      if ("undefined" !== typeof XDomainRequest && !xscheme && enablesXDR) {
        return new XDomainRequest();
      }
    } catch (e) {}
  
    if (!xdomain) {
      try {
        return new globalThis[["Active"].concat("Object").join("X")]("Microsoft.XMLHTTP");
      } catch (e) {}
    }
  };
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-parser/lib/commons.js":
  /*!******************************************************!*\
    !*** ./node_modules/engine.io-parser/lib/commons.js ***!
    \******************************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  var PACKET_TYPES = Object.create(null); // no Map = no polyfill
  
  PACKET_TYPES["open"] = "0";
  PACKET_TYPES["close"] = "1";
  PACKET_TYPES["ping"] = "2";
  PACKET_TYPES["pong"] = "3";
  PACKET_TYPES["message"] = "4";
  PACKET_TYPES["upgrade"] = "5";
  PACKET_TYPES["noop"] = "6";
  var PACKET_TYPES_REVERSE = Object.create(null);
  Object.keys(PACKET_TYPES).forEach(function (key) {
    PACKET_TYPES_REVERSE[PACKET_TYPES[key]] = key;
  });
  var ERROR_PACKET = {
    type: "error",
    data: "parser error"
  };
  module.exports = {
    PACKET_TYPES: PACKET_TYPES,
    PACKET_TYPES_REVERSE: PACKET_TYPES_REVERSE,
    ERROR_PACKET: ERROR_PACKET
  };
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-parser/lib/decodePacket.browser.js":
  /*!*******************************************************************!*\
    !*** ./node_modules/engine.io-parser/lib/decodePacket.browser.js ***!
    \*******************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  var _require = __webpack_require__(/*! ./commons */ "./node_modules/engine.io-parser/lib/commons.js"),
      PACKET_TYPES_REVERSE = _require.PACKET_TYPES_REVERSE,
      ERROR_PACKET = _require.ERROR_PACKET;
  
  var withNativeArrayBuffer = typeof ArrayBuffer === "function";
  var base64decoder;
  
  if (withNativeArrayBuffer) {
    base64decoder = __webpack_require__(/*! base64-arraybuffer */ "./node_modules/base64-arraybuffer/lib/base64-arraybuffer.js");
  }
  
  var decodePacket = function decodePacket(encodedPacket, binaryType) {
    if (typeof encodedPacket !== "string") {
      return {
        type: "message",
        data: mapBinary(encodedPacket, binaryType)
      };
    }
  
    var type = encodedPacket.charAt(0);
  
    if (type === "b") {
      return {
        type: "message",
        data: decodeBase64Packet(encodedPacket.substring(1), binaryType)
      };
    }
  
    var packetType = PACKET_TYPES_REVERSE[type];
  
    if (!packetType) {
      return ERROR_PACKET;
    }
  
    return encodedPacket.length > 1 ? {
      type: PACKET_TYPES_REVERSE[type],
      data: encodedPacket.substring(1)
    } : {
      type: PACKET_TYPES_REVERSE[type]
    };
  };
  
  var decodeBase64Packet = function decodeBase64Packet(data, binaryType) {
    if (base64decoder) {
      var decoded = base64decoder.decode(data);
      return mapBinary(decoded, binaryType);
    } else {
      return {
        base64: true,
        data: data
      }; // fallback for old browsers
    }
  };
  
  var mapBinary = function mapBinary(data, binaryType) {
    switch (binaryType) {
      case "blob":
        return data instanceof ArrayBuffer ? new Blob([data]) : data;
  
      case "arraybuffer":
      default:
        return data;
      // assuming the data is already an ArrayBuffer
    }
  };
  
  module.exports = decodePacket;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-parser/lib/encodePacket.browser.js":
  /*!*******************************************************************!*\
    !*** ./node_modules/engine.io-parser/lib/encodePacket.browser.js ***!
    \*******************************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  var _require = __webpack_require__(/*! ./commons */ "./node_modules/engine.io-parser/lib/commons.js"),
      PACKET_TYPES = _require.PACKET_TYPES;
  
  var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && Object.prototype.toString.call(Blob) === "[object BlobConstructor]";
  var withNativeArrayBuffer = typeof ArrayBuffer === "function"; // ArrayBuffer.isView method is not defined in IE10
  
  var isView = function isView(obj) {
    return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj && obj.buffer instanceof ArrayBuffer;
  };
  
  var encodePacket = function encodePacket(_ref, supportsBinary, callback) {
    var type = _ref.type,
        data = _ref.data;
  
    if (withNativeBlob && data instanceof Blob) {
      if (supportsBinary) {
        return callback(data);
      } else {
        return encodeBlobAsBase64(data, callback);
      }
    } else if (withNativeArrayBuffer && (data instanceof ArrayBuffer || isView(data))) {
      if (supportsBinary) {
        return callback(data instanceof ArrayBuffer ? data : data.buffer);
      } else {
        return encodeBlobAsBase64(new Blob([data]), callback);
      }
    } // plain string
  
  
    return callback(PACKET_TYPES[type] + (data || ""));
  };
  
  var encodeBlobAsBase64 = function encodeBlobAsBase64(data, callback) {
    var fileReader = new FileReader();
  
    fileReader.onload = function () {
      var content = fileReader.result.split(",")[1];
      callback("b" + content);
    };
  
    return fileReader.readAsDataURL(data);
  };
  
  module.exports = encodePacket;
  
  /***/ }),
  
  /***/ "./node_modules/engine.io-parser/lib/index.js":
  /*!****************************************************!*\
    !*** ./node_modules/engine.io-parser/lib/index.js ***!
    \****************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  var encodePacket = __webpack_require__(/*! ./encodePacket */ "./node_modules/engine.io-parser/lib/encodePacket.browser.js");
  
  var decodePacket = __webpack_require__(/*! ./decodePacket */ "./node_modules/engine.io-parser/lib/decodePacket.browser.js");
  
  var SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text
  
  var encodePayload = function encodePayload(packets, callback) {
    // some packets may be added to the array while encoding, so the initial length must be saved
    var length = packets.length;
    var encodedPackets = new Array(length);
    var count = 0;
    packets.forEach(function (packet, i) {
      // force base64 encoding for binary packets
      encodePacket(packet, false, function (encodedPacket) {
        encodedPackets[i] = encodedPacket;
  
        if (++count === length) {
          callback(encodedPackets.join(SEPARATOR));
        }
      });
    });
  };
  
  var decodePayload = function decodePayload(encodedPayload, binaryType) {
    var encodedPackets = encodedPayload.split(SEPARATOR);
    var packets = [];
  
    for (var i = 0; i < encodedPackets.length; i++) {
      var decodedPacket = decodePacket(encodedPackets[i], binaryType);
      packets.push(decodedPacket);
  
      if (decodedPacket.type === "error") {
        break;
      }
    }
  
    return packets;
  };
  
  module.exports = {
    protocol: 4,
    encodePacket: encodePacket,
    encodePayload: encodePayload,
    decodePacket: decodePacket,
    decodePayload: decodePayload
  };
  
  /***/ }),
  
  /***/ "./node_modules/has-cors/index.js":
  /*!****************************************!*\
    !*** ./node_modules/has-cors/index.js ***!
    \****************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  /**
   * Module exports.
   *
   * Logic borrowed from Modernizr:
   *
   *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
   */
  try {
    module.exports = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest();
  } catch (err) {
    // if XMLHttp support is disabled in IE then it will throw
    // when trying to create
    module.exports = false;
  }
  
  /***/ }),
  
  /***/ "./node_modules/ms/index.js":
  /*!**********************************!*\
    !*** ./node_modules/ms/index.js ***!
    \**********************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  /**
   * Helpers.
   */
  var s = 1000;
  var m = s * 60;
  var h = m * 60;
  var d = h * 24;
  var w = d * 7;
  var y = d * 365.25;
  /**
   * Parse or format the given `val`.
   *
   * Options:
   *
   *  - `long` verbose formatting [false]
   *
   * @param {String|Number} val
   * @param {Object} [options]
   * @throws {Error} throw an error if val is not a non-empty string or a number
   * @return {String|Number}
   * @api public
   */
  
  module.exports = function (val, options) {
    options = options || {};
  
    var type = _typeof(val);
  
    if (type === 'string' && val.length > 0) {
      return parse(val);
    } else if (type === 'number' && isFinite(val)) {
      return options["long"] ? fmtLong(val) : fmtShort(val);
    }
  
    throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
  };
  /**
   * Parse the given `str` and return milliseconds.
   *
   * @param {String} str
   * @return {Number}
   * @api private
   */
  
  
  function parse(str) {
    str = String(str);
  
    if (str.length > 100) {
      return;
    }
  
    var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);
  
    if (!match) {
      return;
    }
  
    var n = parseFloat(match[1]);
    var type = (match[2] || 'ms').toLowerCase();
  
    switch (type) {
      case 'years':
      case 'year':
      case 'yrs':
      case 'yr':
      case 'y':
        return n * y;
  
      case 'weeks':
      case 'week':
      case 'w':
        return n * w;
  
      case 'days':
      case 'day':
      case 'd':
        return n * d;
  
      case 'hours':
      case 'hour':
      case 'hrs':
      case 'hr':
      case 'h':
        return n * h;
  
      case 'minutes':
      case 'minute':
      case 'mins':
      case 'min':
      case 'm':
        return n * m;
  
      case 'seconds':
      case 'second':
      case 'secs':
      case 'sec':
      case 's':
        return n * s;
  
      case 'milliseconds':
      case 'millisecond':
      case 'msecs':
      case 'msec':
      case 'ms':
        return n;
  
      default:
        return undefined;
    }
  }
  /**
   * Short format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */
  
  
  function fmtShort(ms) {
    var msAbs = Math.abs(ms);
  
    if (msAbs >= d) {
      return Math.round(ms / d) + 'd';
    }
  
    if (msAbs >= h) {
      return Math.round(ms / h) + 'h';
    }
  
    if (msAbs >= m) {
      return Math.round(ms / m) + 'm';
    }
  
    if (msAbs >= s) {
      return Math.round(ms / s) + 's';
    }
  
    return ms + 'ms';
  }
  /**
   * Long format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */
  
  
  function fmtLong(ms) {
    var msAbs = Math.abs(ms);
  
    if (msAbs >= d) {
      return plural(ms, msAbs, d, 'day');
    }
  
    if (msAbs >= h) {
      return plural(ms, msAbs, h, 'hour');
    }
  
    if (msAbs >= m) {
      return plural(ms, msAbs, m, 'minute');
    }
  
    if (msAbs >= s) {
      return plural(ms, msAbs, s, 'second');
    }
  
    return ms + ' ms';
  }
  /**
   * Pluralization helper.
   */
  
  
  function plural(ms, msAbs, n, name) {
    var isPlural = msAbs >= n * 1.5;
    return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
  }
  
  /***/ }),
  
  /***/ "./node_modules/parseqs/index.js":
  /*!***************************************!*\
    !*** ./node_modules/parseqs/index.js ***!
    \***************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  /**
   * Compiles a querystring
   * Returns string representation of the object
   *
   * @param {Object}
   * @api private
   */
  exports.encode = function (obj) {
    var str = '';
  
    for (var i in obj) {
      if (obj.hasOwnProperty(i)) {
        if (str.length) str += '&';
        str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
      }
    }
  
    return str;
  };
  /**
   * Parses a simple querystring into an object
   *
   * @param {String} qs
   * @api private
   */
  
  
  exports.decode = function (qs) {
    var qry = {};
    var pairs = qs.split('&');
  
    for (var i = 0, l = pairs.length; i < l; i++) {
      var pair = pairs[i].split('=');
      qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
    }
  
    return qry;
  };
  
  /***/ }),
  
  /***/ "./node_modules/parseuri/index.js":
  /*!****************************************!*\
    !*** ./node_modules/parseuri/index.js ***!
    \****************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  /**
   * Parses an URI
   *
   * @author Steven Levithan <stevenlevithan.com> (MIT license)
   * @api private
   */
  var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
  var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'];
  
  module.exports = function parseuri(str) {
    var src = str,
        b = str.indexOf('['),
        e = str.indexOf(']');
  
    if (b != -1 && e != -1) {
      str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
    }
  
    var m = re.exec(str || ''),
        uri = {},
        i = 14;
  
    while (i--) {
      uri[parts[i]] = m[i] || '';
    }
  
    if (b != -1 && e != -1) {
      uri.source = src;
      uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
      uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
      uri.ipv6uri = true;
    }
  
    uri.pathNames = pathNames(uri, uri['path']);
    uri.queryKey = queryKey(uri, uri['query']);
    return uri;
  };
  
  function pathNames(obj, path) {
    var regx = /\/{2,9}/g,
        names = path.replace(regx, "/").split("/");
  
    if (path.substr(0, 1) == '/' || path.length === 0) {
      names.splice(0, 1);
    }
  
    if (path.substr(path.length - 1, 1) == '/') {
      names.splice(names.length - 1, 1);
    }
  
    return names;
  }
  
  function queryKey(uri, query) {
    var data = {};
    query.replace(/(?:^|&)([^&=]*)=?([^&]*)/g, function ($0, $1, $2) {
      if ($1) {
        data[$1] = $2;
      }
    });
    return data;
  }
  
  /***/ }),
  
  /***/ "./node_modules/process/browser.js":
  /*!*****************************************!*\
    !*** ./node_modules/process/browser.js ***!
    \*****************************************/
  /*! no static exports found */
  /***/ (function(module, exports) {
  
  // shim for using process in browser
  var process = module.exports = {}; // cached from whatever global is present so that test runners that stub it
  // don't break things.  But we need to wrap it in a try catch in case it is
  // wrapped in strict mode code which doesn't define any globals.  It's inside a
  // function because try/catches deoptimize in certain engines.
  
  var cachedSetTimeout;
  var cachedClearTimeout;
  
  function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
  }
  
  function defaultClearTimeout() {
    throw new Error('clearTimeout has not been defined');
  }
  
  (function () {
    try {
      if (typeof setTimeout === 'function') {
        cachedSetTimeout = setTimeout;
      } else {
        cachedSetTimeout = defaultSetTimout;
      }
    } catch (e) {
      cachedSetTimeout = defaultSetTimout;
    }
  
    try {
      if (typeof clearTimeout === 'function') {
        cachedClearTimeout = clearTimeout;
      } else {
        cachedClearTimeout = defaultClearTimeout;
      }
    } catch (e) {
      cachedClearTimeout = defaultClearTimeout;
    }
  })();
  
  function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
      //normal enviroments in sane situations
      return setTimeout(fun, 0);
    } // if setTimeout wasn't available but was latter defined
  
  
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
      cachedSetTimeout = setTimeout;
      return setTimeout(fun, 0);
    }
  
    try {
      // when when somebody has screwed with setTimeout but no I.E. maddness
      return cachedSetTimeout(fun, 0);
    } catch (e) {
      try {
        // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
        return cachedSetTimeout.call(null, fun, 0);
      } catch (e) {
        // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
        return cachedSetTimeout.call(this, fun, 0);
      }
    }
  }
  
  function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
      //normal enviroments in sane situations
      return clearTimeout(marker);
    } // if clearTimeout wasn't available but was latter defined
  
  
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
      cachedClearTimeout = clearTimeout;
      return clearTimeout(marker);
    }
  
    try {
      // when when somebody has screwed with setTimeout but no I.E. maddness
      return cachedClearTimeout(marker);
    } catch (e) {
      try {
        // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
        return cachedClearTimeout.call(null, marker);
      } catch (e) {
        // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
        // Some versions of I.E. have different rules for clearTimeout vs setTimeout
        return cachedClearTimeout.call(this, marker);
      }
    }
  }
  
  var queue = [];
  var draining = false;
  var currentQueue;
  var queueIndex = -1;
  
  function cleanUpNextTick() {
    if (!draining || !currentQueue) {
      return;
    }
  
    draining = false;
  
    if (currentQueue.length) {
      queue = currentQueue.concat(queue);
    } else {
      queueIndex = -1;
    }
  
    if (queue.length) {
      drainQueue();
    }
  }
  
  function drainQueue() {
    if (draining) {
      return;
    }
  
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;
    var len = queue.length;
  
    while (len) {
      currentQueue = queue;
      queue = [];
  
      while (++queueIndex < len) {
        if (currentQueue) {
          currentQueue[queueIndex].run();
        }
      }
  
      queueIndex = -1;
      len = queue.length;
    }
  
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
  }
  
  process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
  
    if (arguments.length > 1) {
      for (var i = 1; i < arguments.length; i++) {
        args[i - 1] = arguments[i];
      }
    }
  
    queue.push(new Item(fun, args));
  
    if (queue.length === 1 && !draining) {
      runTimeout(drainQueue);
    }
  }; // v8 likes predictible objects
  
  
  function Item(fun, array) {
    this.fun = fun;
    this.array = array;
  }
  
  Item.prototype.run = function () {
    this.fun.apply(null, this.array);
  };
  
  process.title = 'browser';
  process.browser = true;
  process.env = {};
  process.argv = [];
  process.version = ''; // empty string to avoid regexp issues
  
  process.versions = {};
  
  function noop() {}
  
  process.on = noop;
  process.addListener = noop;
  process.once = noop;
  process.off = noop;
  process.removeListener = noop;
  process.removeAllListeners = noop;
  process.emit = noop;
  process.prependListener = noop;
  process.prependOnceListener = noop;
  
  process.listeners = function (name) {
    return [];
  };
  
  process.binding = function (name) {
    throw new Error('process.binding is not supported');
  };
  
  process.cwd = function () {
    return '/';
  };
  
  process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
  };
  
  process.umask = function () {
    return 0;
  };
  
  /***/ }),
  
  /***/ "./node_modules/socket.io-parser/dist/binary.js":
  /*!******************************************************!*\
    !*** ./node_modules/socket.io-parser/dist/binary.js ***!
    \******************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.reconstructPacket = exports.deconstructPacket = void 0;
  
  var is_binary_1 = __webpack_require__(/*! ./is-binary */ "./node_modules/socket.io-parser/dist/is-binary.js");
  /**
   * Replaces every Buffer | ArrayBuffer | Blob | File in packet with a numbered placeholder.
   *
   * @param {Object} packet - socket.io event packet
   * @return {Object} with deconstructed packet and list of buffers
   * @public
   */
  
  
  function deconstructPacket(packet) {
    var buffers = [];
    var packetData = packet.data;
    var pack = packet;
    pack.data = _deconstructPacket(packetData, buffers);
    pack.attachments = buffers.length; // number of binary 'attachments'
  
    return {
      packet: pack,
      buffers: buffers
    };
  }
  
  exports.deconstructPacket = deconstructPacket;
  
  function _deconstructPacket(data, buffers) {
    if (!data) return data;
  
    if (is_binary_1.isBinary(data)) {
      var placeholder = {
        _placeholder: true,
        num: buffers.length
      };
      buffers.push(data);
      return placeholder;
    } else if (Array.isArray(data)) {
      var newData = new Array(data.length);
  
      for (var i = 0; i < data.length; i++) {
        newData[i] = _deconstructPacket(data[i], buffers);
      }
  
      return newData;
    } else if (_typeof(data) === "object" && !(data instanceof Date)) {
      var _newData = {};
  
      for (var key in data) {
        if (data.hasOwnProperty(key)) {
          _newData[key] = _deconstructPacket(data[key], buffers);
        }
      }
  
      return _newData;
    }
  
    return data;
  }
  /**
   * Reconstructs a binary packet from its placeholder packet and buffers
   *
   * @param {Object} packet - event packet with placeholders
   * @param {Array} buffers - binary buffers to put in placeholder positions
   * @return {Object} reconstructed packet
   * @public
   */
  
  
  function reconstructPacket(packet, buffers) {
    packet.data = _reconstructPacket(packet.data, buffers);
    packet.attachments = undefined; // no longer useful
  
    return packet;
  }
  
  exports.reconstructPacket = reconstructPacket;
  
  function _reconstructPacket(data, buffers) {
    if (!data) return data;
  
    if (data && data._placeholder) {
      return buffers[data.num]; // appropriate buffer (should be natural order anyway)
    } else if (Array.isArray(data)) {
      for (var i = 0; i < data.length; i++) {
        data[i] = _reconstructPacket(data[i], buffers);
      }
    } else if (_typeof(data) === "object") {
      for (var key in data) {
        if (data.hasOwnProperty(key)) {
          data[key] = _reconstructPacket(data[key], buffers);
        }
      }
    }
  
    return data;
  }
  
  /***/ }),
  
  /***/ "./node_modules/socket.io-parser/dist/index.js":
  /*!*****************************************************!*\
    !*** ./node_modules/socket.io-parser/dist/index.js ***!
    \*****************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }
  
  function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }
  
  function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }
  
  function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }
  
  function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }
  
  function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
  
  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.Decoder = exports.Encoder = exports.PacketType = exports.protocol = void 0;
  
  var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
  
  var binary_1 = __webpack_require__(/*! ./binary */ "./node_modules/socket.io-parser/dist/binary.js");
  
  var is_binary_1 = __webpack_require__(/*! ./is-binary */ "./node_modules/socket.io-parser/dist/is-binary.js");
  
  var debug = __webpack_require__(/*! debug */ "./node_modules/debug/src/browser.js")("socket.io-parser");
  /**
   * Protocol version.
   *
   * @public
   */
  
  
  exports.protocol = 5;
  var PacketType;
  
  (function (PacketType) {
    PacketType[PacketType["CONNECT"] = 0] = "CONNECT";
    PacketType[PacketType["DISCONNECT"] = 1] = "DISCONNECT";
    PacketType[PacketType["EVENT"] = 2] = "EVENT";
    PacketType[PacketType["ACK"] = 3] = "ACK";
    PacketType[PacketType["CONNECT_ERROR"] = 4] = "CONNECT_ERROR";
    PacketType[PacketType["BINARY_EVENT"] = 5] = "BINARY_EVENT";
    PacketType[PacketType["BINARY_ACK"] = 6] = "BINARY_ACK";
  })(PacketType = exports.PacketType || (exports.PacketType = {}));
  /**
   * A socket.io Encoder instance
   */
  
  
  var Encoder = /*#__PURE__*/function () {
    function Encoder() {
      _classCallCheck(this, Encoder);
    }
  
    _createClass(Encoder, [{
      key: "encode",
  
      /**
       * Encode a packet as a single string if non-binary, or as a
       * buffer sequence, depending on packet type.
       *
       * @param {Object} obj - packet object
       */
      value: function encode(obj) {
        debug("encoding packet %j", obj);
  
        if (obj.type === PacketType.EVENT || obj.type === PacketType.ACK) {
          if (is_binary_1.hasBinary(obj)) {
            obj.type = obj.type === PacketType.EVENT ? PacketType.BINARY_EVENT : PacketType.BINARY_ACK;
            return this.encodeAsBinary(obj);
          }
        }
  
        return [this.encodeAsString(obj)];
      }
      /**
       * Encode packet as string.
       */
  
    }, {
      key: "encodeAsString",
      value: function encodeAsString(obj) {
        // first is type
        var str = "" + obj.type; // attachments if we have them
  
        if (obj.type === PacketType.BINARY_EVENT || obj.type === PacketType.BINARY_ACK) {
          str += obj.attachments + "-";
        } // if we have a namespace other than `/`
        // we append it followed by a comma `,`
  
  
        if (obj.nsp && "/" !== obj.nsp) {
          str += obj.nsp + ",";
        } // immediately followed by the id
  
  
        if (null != obj.id) {
          str += obj.id;
        } // json data
  
  
        if (null != obj.data) {
          str += JSON.stringify(obj.data);
        }
  
        debug("encoded %j as %s", obj, str);
        return str;
      }
      /**
       * Encode packet as 'buffer sequence' by removing blobs, and
       * deconstructing packet into object with placeholders and
       * a list of buffers.
       */
  
    }, {
      key: "encodeAsBinary",
      value: function encodeAsBinary(obj) {
        var deconstruction = binary_1.deconstructPacket(obj);
        var pack = this.encodeAsString(deconstruction.packet);
        var buffers = deconstruction.buffers;
        buffers.unshift(pack); // add packet info to beginning of data list
  
        return buffers; // write all the buffers
      }
    }]);
  
    return Encoder;
  }();
  
  exports.Encoder = Encoder;
  /**
   * A socket.io Decoder instance
   *
   * @return {Object} decoder
   */
  
  var Decoder = /*#__PURE__*/function (_Emitter) {
    _inherits(Decoder, _Emitter);
  
    var _super = _createSuper(Decoder);
  
    function Decoder() {
      _classCallCheck(this, Decoder);
  
      return _super.call(this);
    }
    /**
     * Decodes an encoded packet string into packet JSON.
     *
     * @param {String} obj - encoded packet
     */
  
  
    _createClass(Decoder, [{
      key: "add",
      value: function add(obj) {
        var packet;
  
        if (typeof obj === "string") {
          packet = this.decodeString(obj);
  
          if (packet.type === PacketType.BINARY_EVENT || packet.type === PacketType.BINARY_ACK) {
            // binary packet's json
            this.reconstructor = new BinaryReconstructor(packet); // no attachments, labeled binary but no binary data to follow
  
            if (packet.attachments === 0) {
              _get(_getPrototypeOf(Decoder.prototype), "emit", this).call(this, "decoded", packet);
            }
          } else {
            // non-binary full packet
            _get(_getPrototypeOf(Decoder.prototype), "emit", this).call(this, "decoded", packet);
          }
        } else if (is_binary_1.isBinary(obj) || obj.base64) {
          // raw binary data
          if (!this.reconstructor) {
            throw new Error("got binary data when not reconstructing a packet");
          } else {
            packet = this.reconstructor.takeBinaryData(obj);
  
            if (packet) {
              // received final buffer
              this.reconstructor = null;
  
              _get(_getPrototypeOf(Decoder.prototype), "emit", this).call(this, "decoded", packet);
            }
          }
        } else {
          throw new Error("Unknown type: " + obj);
        }
      }
      /**
       * Decode a packet String (JSON data)
       *
       * @param {String} str
       * @return {Object} packet
       */
  
    }, {
      key: "decodeString",
      value: function decodeString(str) {
        var i = 0; // look up type
  
        var p = {
          type: Number(str.charAt(0))
        };
  
        if (PacketType[p.type] === undefined) {
          throw new Error("unknown packet type " + p.type);
        } // look up attachments if type binary
  
  
        if (p.type === PacketType.BINARY_EVENT || p.type === PacketType.BINARY_ACK) {
          var start = i + 1;
  
          while (str.charAt(++i) !== "-" && i != str.length) {}
  
          var buf = str.substring(start, i);
  
          if (buf != Number(buf) || str.charAt(i) !== "-") {
            throw new Error("Illegal attachments");
          }
  
          p.attachments = Number(buf);
        } // look up namespace (if any)
  
  
        if ("/" === str.charAt(i + 1)) {
          var _start = i + 1;
  
          while (++i) {
            var c = str.charAt(i);
            if ("," === c) break;
            if (i === str.length) break;
          }
  
          p.nsp = str.substring(_start, i);
        } else {
          p.nsp = "/";
        } // look up id
  
  
        var next = str.charAt(i + 1);
  
        if ("" !== next && Number(next) == next) {
          var _start2 = i + 1;
  
          while (++i) {
            var _c = str.charAt(i);
  
            if (null == _c || Number(_c) != _c) {
              --i;
              break;
            }
  
            if (i === str.length) break;
          }
  
          p.id = Number(str.substring(_start2, i + 1));
        } // look up json data
  
  
        if (str.charAt(++i)) {
          var payload = tryParse(str.substr(i));
  
          if (Decoder.isPayloadValid(p.type, payload)) {
            p.data = payload;
          } else {
            throw new Error("invalid payload");
          }
        }
  
        debug("decoded %s as %j", str, p);
        return p;
      }
    }, {
      key: "destroy",
  
      /**
       * Deallocates a parser's resources
       */
      value: function destroy() {
        if (this.reconstructor) {
          this.reconstructor.finishedReconstruction();
        }
      }
    }], [{
      key: "isPayloadValid",
      value: function isPayloadValid(type, payload) {
        switch (type) {
          case PacketType.CONNECT:
            return _typeof(payload) === "object";
  
          case PacketType.DISCONNECT:
            return payload === undefined;
  
          case PacketType.CONNECT_ERROR:
            return typeof payload === "string" || _typeof(payload) === "object";
  
          case PacketType.EVENT:
          case PacketType.BINARY_EVENT:
            return Array.isArray(payload) && typeof payload[0] === "string";
  
          case PacketType.ACK:
          case PacketType.BINARY_ACK:
            return Array.isArray(payload);
        }
      }
    }]);
  
    return Decoder;
  }(Emitter);
  
  exports.Decoder = Decoder;
  
  function tryParse(str) {
    try {
      return JSON.parse(str);
    } catch (e) {
      return false;
    }
  }
  /**
   * A manager of a binary event's 'buffer sequence'. Should
   * be constructed whenever a packet of type BINARY_EVENT is
   * decoded.
   *
   * @param {Object} packet
   * @return {BinaryReconstructor} initialized reconstructor
   */
  
  
  var BinaryReconstructor = /*#__PURE__*/function () {
    function BinaryReconstructor(packet) {
      _classCallCheck(this, BinaryReconstructor);
  
      this.packet = packet;
      this.buffers = [];
      this.reconPack = packet;
    }
    /**
     * Method to be called when binary data received from connection
     * after a BINARY_EVENT packet.
     *
     * @param {Buffer | ArrayBuffer} binData - the raw binary data received
     * @return {null | Object} returns null if more binary data is expected or
     *   a reconstructed packet object if all buffers have been received.
     */
  
  
    _createClass(BinaryReconstructor, [{
      key: "takeBinaryData",
      value: function takeBinaryData(binData) {
        this.buffers.push(binData);
  
        if (this.buffers.length === this.reconPack.attachments) {
          // done with buffer list
          var packet = binary_1.reconstructPacket(this.reconPack, this.buffers);
          this.finishedReconstruction();
          return packet;
        }
  
        return null;
      }
      /**
       * Cleans up binary packet reconstruction variables.
       */
  
    }, {
      key: "finishedReconstruction",
      value: function finishedReconstruction() {
        this.reconPack = null;
        this.buffers = [];
      }
    }]);
  
    return BinaryReconstructor;
  }();
  
  /***/ }),
  
  /***/ "./node_modules/socket.io-parser/dist/is-binary.js":
  /*!*********************************************************!*\
    !*** ./node_modules/socket.io-parser/dist/is-binary.js ***!
    \*********************************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.hasBinary = exports.isBinary = void 0;
  var withNativeArrayBuffer = typeof ArrayBuffer === "function";
  
  var isView = function isView(obj) {
    return typeof ArrayBuffer.isView === "function" ? ArrayBuffer.isView(obj) : obj.buffer instanceof ArrayBuffer;
  };
  
  var toString = Object.prototype.toString;
  var withNativeBlob = typeof Blob === "function" || typeof Blob !== "undefined" && toString.call(Blob) === "[object BlobConstructor]";
  var withNativeFile = typeof File === "function" || typeof File !== "undefined" && toString.call(File) === "[object FileConstructor]";
  /**
   * Returns true if obj is a Buffer, an ArrayBuffer, a Blob or a File.
   *
   * @private
   */
  
  function isBinary(obj) {
    return withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)) || withNativeBlob && obj instanceof Blob || withNativeFile && obj instanceof File;
  }
  
  exports.isBinary = isBinary;
  
  function hasBinary(obj, toJSON) {
    if (!obj || _typeof(obj) !== "object") {
      return false;
    }
  
    if (Array.isArray(obj)) {
      for (var i = 0, l = obj.length; i < l; i++) {
        if (hasBinary(obj[i])) {
          return true;
        }
      }
  
      return false;
    }
  
    if (isBinary(obj)) {
      return true;
    }
  
    if (obj.toJSON && typeof obj.toJSON === "function" && arguments.length === 1) {
      return hasBinary(obj.toJSON(), true);
    }
  
    for (var key in obj) {
      if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
        return true;
      }
    }
  
    return false;
  }
  
  exports.hasBinary = hasBinary;
  
  /***/ }),
  
  /***/ "./node_modules/yeast/index.js":
  /*!*************************************!*\
    !*** ./node_modules/yeast/index.js ***!
    \*************************************/
  /*! no static exports found */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split(''),
      length = 64,
      map = {},
      seed = 0,
      i = 0,
      prev;
  /**
   * Return a string representing the specified number.
   *
   * @param {Number} num The number to convert.
   * @returns {String} The string representation of the number.
   * @api public
   */
  
  function encode(num) {
    var encoded = '';
  
    do {
      encoded = alphabet[num % length] + encoded;
      num = Math.floor(num / length);
    } while (num > 0);
  
    return encoded;
  }
  /**
   * Return the integer value specified by the given string.
   *
   * @param {String} str The string to convert.
   * @returns {Number} The integer value represented by the string.
   * @api public
   */
  
  
  function decode(str) {
    var decoded = 0;
  
    for (i = 0; i < str.length; i++) {
      decoded = decoded * length + map[str.charAt(i)];
    }
  
    return decoded;
  }
  /**
   * Yeast: A tiny growing id generator.
   *
   * @returns {String} A unique id.
   * @api public
   */
  
  
  function yeast() {
    var now = encode(+new Date());
    if (now !== prev) return seed = 0, prev = now;
    return now + '.' + encode(seed++);
  } //
  // Map each character to its index.
  //
  
  
  for (; i < length; i++) {
    map[alphabet[i]] = i;
  } //
  // Expose the `yeast`, `encode` and `decode` functions.
  //
  
  
  yeast.encode = encode;
  yeast.decode = decode;
  module.exports = yeast;
  
  /***/ })
  
  /******/ });
  });
  //# sourceMappingURL=socket.io.js.map