text: /*!
   * Socket.IO v2.2.0
   * (c) 2014-2018 Guillermo Rauch
   * Released under the MIT License.
   */
  !function (t, e) {
      "object" == typeof exports && "object" == typeof module ? module.exports = e() : "function" == typeof define && define.amd ? define([], e) : "object" == typeof exports ? exports.io = e() : t.io = e()
  }(this, function () {
      return function (t) {
          function e(r) {
              if (n[r]) return n[r].exports;
              var o = n[r] = {exports: {}, id: r, loaded: !1};
              return t[r].call(o.exports, o, o.exports, e), o.loaded = !0, o.exports
          }
  
          var n = {};
          return e.m = t, e.c = n, e.p = "", e(0)
      }([function (t, e, n) {
          "use strict";
  
          function r(t, e) {
              "object" === ("undefined" == typeof t ? "undefined" : o(t)) && (e = t, t = void 0), e = e || {};
              var n, r = i(t), s = r.source, u = r.id, h = r.path, f = p[u] && h in p[u].nsps,
                  l = e.forceNew || e["force new connection"] || !1 === e.multiplex || f;
              return l ? (c("ignoring socket cache for %s", s), n = a(s, e)) : (p[u] || (c("new io instance for %s", s), p[u] = a(s, e)), n = p[u]), r.query && !e.query && (e.query = r.query), n.socket(r.path, e)
          }
  
          var o = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (t) {
              return typeof t
          } : function (t) {
              return t && "function" == typeof Symbol && t.constructor === Symbol && t !== Symbol.prototype ? "symbol" : typeof t
          }, i = n(1), s = n(7), a = n(12), c = n(3)("socket.io-client");
          t.exports = e = r;
          var p = e.managers = {};
          e.protocol = s.protocol, e.connect = r, e.Manager = n(12), e.Socket = n(36)
      }, function (t, e, n) {
          "use strict";
  
          function r(t, e) {
              var n = t;
              e = e || "undefined" != typeof location && location, null == t && (t = e.protocol + "//" + e.host), "string" == typeof t && ("/" === t.charAt(0) && (t = "/" === t.charAt(1) ? e.protocol + t : e.host + t), /^(https?|wss?):\/\//.test(t) || (i("protocol-less url %s", t), t = "undefined" != typeof e ? e.protocol + "//" + t : "https://" + t), i("parse %s", t), n = o(t)), n.port || (/^(http|ws)$/.test(n.protocol) ? n.port = "80" : /^(http|ws)s$/.test(n.protocol) && (n.port = "443")), n.path = n.path || "/";
              var r = n.host.indexOf(":") !== -1, s = r ? "[" + n.host + "]" : n.host;
              return n.id = n.protocol + "://" + s + ":" + n.port, n.href = n.protocol + "://" + s + (e && e.port === n.port ? "" : ":" + n.port), n
          }
  
          var o = n(2), i = n(3)("socket.io-client:url");
          t.exports = r
      }, function (t, e) {
          var n = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,
              r = ["source", "protocol", "authority", "userInfo", "user", "password", "host", "port", "relative", "path", "directory", "file", "query", "anchor"];
          t.exports = function (t) {
              var e = t, o = t.indexOf("["), i = t.indexOf("]");
              o != -1 && i != -1 && (t = t.substring(0, o) + t.substring(o, i).replace(/:/g, ";") + t.substring(i, t.length));
              for (var s = n.exec(t || ""), a = {}, c = 14; c--;) a[r[c]] = s[c] || "";
              return o != -1 && i != -1 && (a.source = e, a.host = a.host.substring(1, a.host.length - 1).replace(/;/g, ":"), a.authority = a.authority.replace("[", "").replace("]", "").replace(/;/g, ":"), a.ipv6uri = !0), a
          }
      }, function (t, e, n) {
          (function (r) {
              function o() {
                  return !("undefined" == typeof window || !window.process || "renderer" !== window.process.type) || ("undefined" == typeof navigator || !navigator.userAgent || !navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) && ("undefined" != typeof document && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || "undefined" != typeof window && window.console && (window.console.firebug || window.console.exception && window.console.table) || "undefined" != typeof navigator && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || "undefined" != typeof navigator && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/))
              }
  
              function i(t) {
                  var n = this.useColors;
                  if (t[0] = (n ? "%c" : "") + this.namespace + (n ? " %c" : " ") + t[0] + (n ? "%c " : " ") + "+" + e.humanize(this.diff), n) {
                      var r = "color: " + this.color;
                      t.splice(1, 0, r, "color: inherit");
                      var o = 0, i = 0;
                      t[0].replace(/%[a-zA-Z%]/g, function (t) {
                          "%%" !== t && (o++, "%c" === t && (i = o))
                      }), t.splice(i, 0, r)
                  }
              }
  
              function s() {
                  return "object" == typeof console && console.log && Function.prototype.apply.call(console.log, console, arguments)
              }
  
              function a(t) {
                  try {
                      null == t ? e.storage.removeItem("debug") : e.storage.debug = t
                  } catch (n) {
                  }
              }
  
              function c() {
                  var t;
                  try {
                      t = e.storage.debug
                  } catch (n) {
                  }
                  return !t && "undefined" != typeof r && "env" in r && (t = r.env.DEBUG), t
              }
  
              function p() {
                  try {
                      return window.localStorage
                  } catch (t) {
                  }
              }
  
              e = t.exports = n(5), e.log = s, e.formatArgs = i, e.save = a, e.load = c, e.useColors = o, e.storage = "undefined" != typeof chrome && "undefined" != typeof chrome.storage ? chrome.storage.local : p(), e.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"], e.formatters.j = function (t) {
                  try {
                      return JSON.stringify(t)
                  } catch (e) {
                      return "[UnexpectedJSONParseError]: " + e.message
                  }
              }, e.enable(c())
          }).call(e, n(4))
      }, function (t, e) {
          function n() {
              throw new Error("setTimeout has not been defined")
          }
  
          function r() {
              throw new Error("clearTimeout has not been defined")
          }
  
          function o(t) {
              if (u === setTimeout) return setTimeout(t, 0);
              if ((u === n || !u) && setTimeout) return u = setTimeout, setTimeout(t, 0);
              try {
                  return u(t, 0)
              } catch (e) {
                  try {
                      return u.call(null, t, 0)
                  } catch (e) {
                      return u.call(this, t, 0)
                  }
              }
          }
  
          function i(t) {
              if (h === clearTimeout) return clearTimeout(t);
              if ((h === r || !h) && clearTimeout) return h = clearTimeout, clearTimeout(t);
              try {
                  return h(t)
              } catch (e) {
                  try {
                      return h.call(null, t)
                  } catch (e) {
                      return h.call(this, t)
                  }
              }
          }
  
          function s() {
              y && l && (y = !1, l.length ? d = l.concat(d) : m = -1, d.length && a())
          }
  
          function a() {
              if (!y) {
                  var t = o(s);
                  y = !0;
                  for (var e = d.length; e;) {
                      for (l = d, d = []; ++m < e;) l && l[m].run();
                      m = -1, e = d.length
                  }
                  l = null, y = !1, i(t)
              }
          }
  
          function c(t, e) {
              this.fun = t, this.array = e
          }
  
          function p() {
          }
  
          var u, h, f = t.exports = {};
          !function () {
              try {
                  u = "function" == typeof setTimeout ? setTimeout : n
              } catch (t) {
                  u = n
              }
              try {
                  h = "function" == typeof clearTimeout ? clearTimeout : r
              } catch (t) {
                  h = r
              }
          }();
          var l, d = [], y = !1, m = -1;
          f.nextTick = function (t) {
              var e = new Array(arguments.length - 1);
              if (arguments.length > 1) for (var n = 1; n < arguments.length; n++) e[n - 1] = arguments[n];
              d.push(new c(t, e)), 1 !== d.length || y || o(a)
          }, c.prototype.run = function () {
              this.fun.apply(null, this.array)
          }, f.title = "browser", f.browser = !0, f.env = {}, f.argv = [], f.version = "", f.versions = {}, f.on = p, f.addListener = p, f.once = p, f.off = p, f.removeListener = p, f.removeAllListeners = p, f.emit = p, f.prependListener = p, f.prependOnceListener = p, f.listeners = function (t) {
              return []
          }, f.binding = function (t) {
              throw new Error("process.binding is not supported")
          }, f.cwd = function () {
              return "/"
          }, f.chdir = function (t) {
              throw new Error("process.chdir is not supported")
          }, f.umask = function () {
              return 0
          }
      }, function (t, e, n) {
          function r(t) {
              var n, r = 0;
              for (n in t) r = (r << 5) - r + t.charCodeAt(n), r |= 0;
              return e.colors[Math.abs(r) % e.colors.length]
          }
  
          function o(t) {
              function n() {
                  if (n.enabled) {
                      var t = n, r = +new Date, i = r - (o || r);
                      t.diff = i, t.prev = o, t.curr = r, o = r;
                      for (var s = new Array(arguments.length), a = 0; a < s.length; a++) s[a] = arguments[a];
                      s[0] = e.coerce(s[0]), "string" != typeof s[0] && s.unshift("%O");
                      var c = 0;
                      s[0] = s[0].replace(/%([a-zA-Z%])/g, function (n, r) {
                          if ("%%" === n) return n;
                          c++;
                          var o = e.formatters[r];
                          if ("function" == typeof o) {
                              var i = s[c];
                              n = o.call(t, i), s.splice(c, 1), c--
                          }
                          return n
                      }), e.formatArgs.call(t, s);
                      var p = n.log || e.log || console.log.bind(console);
                      p.apply(t, s)
                  }
              }
  
              var o;
              return n.namespace = t, n.enabled = e.enabled(t), n.useColors = e.useColors(), n.color = r(t), n.destroy = i, "function" == typeof e.init && e.init(n), e.instances.push(n), n
          }
  
          function i() {
              var t = e.instances.indexOf(this);
              return t !== -1 && (e.instances.splice(t, 1), !0)
          }
  
          function s(t) {
              e.save(t), e.names = [], e.skips = [];
              var n, r = ("string" == typeof t ? t : "").split(/[\s,]+/), o = r.length;
              for (n = 0; n < o; n++) r[n] && (t = r[n].replace(/\*/g, ".*?"), "-" === t[0] ? e.skips.push(new RegExp("^" + t.substr(1) + "$")) : e.names.push(new RegExp("^" + t + "$")));
              for (n = 0; n < e.instances.length; n++) {
                  var i = e.instances[n];
                  i.enabled = e.enabled(i.namespace)
              }
          }
  
          function a() {
              e.enable("")
          }
  
          function c(t) {
              if ("*" === t[t.length - 1]) return !0;
              var n, r;
              for (n = 0, r = e.skips.length; n < r; n++) if (e.skips[n].test(t)) return !1;
              for (n = 0, r = e.names.length; n < r; n++) if (e.names[n].test(t)) return !0;
              return !1
          }
  
          function p(t) {
              return t instanceof Error ? t.stack || t.message : t
          }
  
          e = t.exports = o.debug = o["default"] = o, e.coerce = p, e.disable = a, e.enable = s, e.enabled = c, e.humanize = n(6), e.instances = [], e.names = [], e.skips = [], e.formatters = {}
      }, function (t, e) {
          function n(t) {
              if (t = String(t), !(t.length > 100)) {
                  var e = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(t);
                  if (e) {
                      var n = parseFloat(e[1]), r = (e[2] || "ms").toLowerCase();
                      switch (r) {
                          case"years":
                          case"year":
                          case"yrs":
                          case"yr":
                          case"y":
                              return n * u;
                          case"days":
                          case"day":
                          case"d":
                              return n * p;
                          case"hours":
                          case"hour":
                          case"hrs":
                          case"hr":
                          case"h":
                              return n * c;
                          case"minutes":
                          case"minute":
                          case"mins":
                          case"min":
                          case"m":
                              return n * a;
                          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
                      }
                  }
              }
          }
  
          function r(t) {
              return t >= p ? Math.round(t / p) + "d" : t >= c ? Math.round(t / c) + "h" : t >= a ? Math.round(t / a) + "m" : t >= s ? Math.round(t / s) + "s" : t + "ms"
          }
  
          function o(t) {
              return i(t, p, "day") || i(t, c, "hour") || i(t, a, "minute") || i(t, s, "second") || t + " ms"
          }
  
          function i(t, e, n) {
              if (!(t < e)) return t < 1.5 * e ? Math.floor(t / e) + " " + n : Math.ceil(t / e) + " " + n + "s"
          }
  
          var s = 1e3, a = 60 * s, c = 60 * a, p = 24 * c, u = 365.25 * p;
          t.exports = function (t, e) {
              e = e || {};
              var i = typeof t;
              if ("string" === i && t.length > 0) return n(t);
              if ("number" === i && isNaN(t) === !1) return e["long"] ? o(t) : r(t);
              throw new Error("val is not a non-empty string or a valid number. val=" + JSON.stringify(t))
          }
      }, function (t, e, n) {
          function r() {
          }
  
          function o(t) {
              var n = "" + t.type;
              if (e.BINARY_EVENT !== t.type && e.BINARY_ACK !== t.type || (n += t.attachments + "-"), t.nsp && "/" !== t.nsp && (n += t.nsp + ","), null != t.id && (n += t.id), null != t.data) {
                  var r = i(t.data);
                  if (r === !1) return g;
                  n += r
              }
              return f("encoded %j as %s", t, n), n
          }
  
          function i(t) {
              try {
                  return JSON.stringify(t)
              } catch (e) {
                  return !1
              }
          }
  
          function s(t, e) {
              function n(t) {
                  var n = d.deconstructPacket(t), r = o(n.packet), i = n.buffers;
                  i.unshift(r), e(i)
              }
  
              d.removeBlobs(t, n)
          }
  
          function a() {
              this.reconstructor = null
          }
  
          function c(t) {
              var n = 0, r = {type: Number(t.charAt(0))};
              if (null == e.types[r.type]) return h("unknown packet type " + r.type);
              if (e.BINARY_EVENT === r.type || e.BINARY_ACK === r.type) {
                  for (var o = ""; "-" !== t.charAt(++n) && (o += t.charAt(n), n != t.length);) ;
                  if (o != Number(o) || "-" !== t.charAt(n)) throw new Error("Illegal attachments");
                  r.attachments = Number(o)
              }
              if ("/" === t.charAt(n + 1)) for (r.nsp = ""; ++n;) {
                  var i = t.charAt(n);
                  if ("," === i) break;
                  if (r.nsp += i, n === t.length) break
              } else r.nsp = "/";
              var s = t.charAt(n + 1);
              if ("" !== s && Number(s) == s) {
                  for (r.id = ""; ++n;) {
                      var i = t.charAt(n);
                      if (null == i || Number(i) != i) {
                          --n;
                          break
                      }
                      if (r.id += t.charAt(n), n === t.length) break
                  }
                  r.id = Number(r.id)
              }
              if (t.charAt(++n)) {
                  var a = p(t.substr(n)), c = a !== !1 && (r.type === e.ERROR || y(a));
                  if (!c) return h("invalid payload");
                  r.data = a
              }
              return f("decoded %s as %j", t, r), r
          }
  
          function p(t) {
              try {
                  return JSON.parse(t)
              } catch (e) {
                  return !1
              }
          }
  
          function u(t) {
              this.reconPack = t, this.buffers = []
          }
  
          function h(t) {
              return {type: e.ERROR, data: "parser error: " + t}
          }
  
          var f = n(3)("socket.io-parser"), l = n(8), d = n(9), y = n(10), m = n(11);
          e.protocol = 4, e.types = ["CONNECT", "DISCONNECT", "EVENT", "ACK", "ERROR", "BINARY_EVENT", "BINARY_ACK"], e.CONNECT = 0, e.DISCONNECT = 1, e.EVENT = 2, e.ACK = 3, e.ERROR = 4, e.BINARY_EVENT = 5, e.BINARY_ACK = 6, e.Encoder = r, e.Decoder = a;
          var g = e.ERROR + '"encode error"';
          r.prototype.encode = function (t, n) {
              if (f("encoding packet %j", t), e.BINARY_EVENT === t.type || e.BINARY_ACK === t.type) s(t, n); else {
                  var r = o(t);
                  n([r])
              }
          }, l(a.prototype), a.prototype.add = function (t) {
              var n;
              if ("string" == typeof t) n = c(t), e.BINARY_EVENT === n.type || e.BINARY_ACK === n.type ? (this.reconstructor = new u(n), 0 === this.reconstructor.reconPack.attachments && this.emit("decoded", n)) : this.emit("decoded", n); else {
                  if (!m(t) && !t.base64) throw new Error("Unknown type: " + t);
                  if (!this.reconstructor) throw new Error("got binary data when not reconstructing a packet");
                  n = this.reconstructor.takeBinaryData(t), n && (this.reconstructor = null, this.emit("decoded", n))
              }
          }, a.prototype.destroy = function () {
              this.reconstructor && this.reconstructor.finishedReconstruction()
          }, u.prototype.takeBinaryData = function (t) {
              if (this.buffers.push(t), this.buffers.length === this.reconPack.attachments) {
                  var e = d.reconstructPacket(this.reconPack, this.buffers);
                  return this.finishedReconstruction(), e
              }
              return null
          }, u.prototype.finishedReconstruction = function () {
              this.reconPack = null, this.buffers = []
          }
      }, function (t, e, n) {
          function r(t) {
              if (t) return o(t)
          }
  
          function o(t) {
              for (var e in r.prototype) t[e] = r.prototype[e];
              return t
          }
  
          t.exports = r, r.prototype.on = r.prototype.addEventListener = function (t, e) {
              return this._callbacks = this._callbacks || {}, (this._callbacks["$" + t] = this._callbacks["$" + t] || []).push(e), this
          }, r.prototype.once = function (t, e) {
              function n() {
                  this.off(t, n), e.apply(this, arguments)
              }
  
              return n.fn = e, this.on(t, n), this
          }, r.prototype.off = r.prototype.removeListener = r.prototype.removeAllListeners = r.prototype.removeEventListener = function (t, e) {
              if (this._callbacks = this._callbacks || {}, 0 == arguments.length) return this._callbacks = {}, this;
              var n = this._callbacks["$" + t];
              if (!n) return this;
              if (1 == arguments.length) return delete this._callbacks["$" + t], this;
              for (var r, o = 0; o < n.length; o++) if (r = n[o], r === e || r.fn === e) {
                  n.splice(o, 1);
                  break
              }
              return this
          }, r.prototype.emit = function (t) {
              this._callbacks = this._callbacks || {};
              var e = [].slice.call(arguments, 1), n = this._callbacks["$" + t];
              if (n) {
                  n = n.slice(0);
                  for (var r = 0, o = n.length; r < o; ++r) n[r].apply(this, e)
              }
              return this
          }, r.prototype.listeners = function (t) {
              return this._callbacks = this._callbacks || {}, this._callbacks["$" + t] || []
          }, r.prototype.hasListeners = function (t) {
              return !!this.listeners(t).length
          }
      }, function (t, e, n) {
          function r(t, e) {
              if (!t) return t;
              if (s(t)) {
                  var n = {_placeholder: !0, num: e.length};
                  return e.push(t), n
              }
              if (i(t)) {
                  for (var o = new Array(t.length), a = 0; a < t.length; a++) o[a] = r(t[a], e);
                  return o
              }
              if ("object" == typeof t && !(t instanceof Date)) {
                  var o = {};
                  for (var c in t) o[c] = r(t[c], e);
                  return o
              }
              return t
          }
  
          function o(t, e) {
              if (!t) return t;
              if (t && t._placeholder) return e[t.num];
              if (i(t)) for (var n = 0; n < t.length; n++) t[n] = o(t[n], e); else if ("object" == typeof t) for (var r in t) t[r] = o(t[r], e);
              return t
          }
  
          var i = n(10), s = n(11), a = Object.prototype.toString,
              c = "function" == typeof Blob || "undefined" != typeof Blob && "[object BlobConstructor]" === a.call(Blob),
              p = "function" == typeof File || "undefined" != typeof File && "[object FileConstructor]" === a.call(File);
          e.deconstructPacket = function (t) {
              var e = [], n = t.data, o = t;
              return o.data = r(n, e), o.attachments = e.length, {packet: o, buffers: e}
          }, e.reconstructPacket = function (t, e) {
              return t.data = o(t.data, e), t.attachments = void 0, t
          }, e.removeBlobs = function (t, e) {
              function n(t, a, u) {
                  if (!t) return t;
                  if (c && t instanceof Blob || p && t instanceof File) {
                      r++;
                      var h = new FileReader;
                      h.onload = function () {
                          u ? u[a] = this.result : o = this.result, --r || e(o)
                      }, h.readAsArrayBuffer(t)
                  } else if (i(t)) for (var f = 0; f < t.length; f++) n(t[f], f, t); else if ("object" == typeof t && !s(t)) for (var l in t) n(t[l], l, t)
              }
  
              var r = 0, o = t;
              n(o), r || e(o)
          }
      }, function (t, e) {
          var n = {}.toString;
          t.exports = Array.isArray || function (t) {
              return "[object Array]" == n.call(t)
          }
      }, function (t, e) {
          function n(t) {
              return r && Buffer.isBuffer(t) || o && (t instanceof ArrayBuffer || i(t))
          }
  
          t.exports = n;
          var r = "function" == typeof Buffer && "function" == typeof Buffer.isBuffer,
              o = "function" == typeof ArrayBuffer, i = function (t) {
                  return "function" == typeof ArrayBuffer.isView ? ArrayBuffer.isView(t) : t.buffer instanceof ArrayBuffer
              }
      }, function (t, e, n) {
          "use strict";
  
          function r(t, e) {
              if (!(this instanceof r)) return new r(t, e);
              t && "object" === ("undefined" == typeof t ? "undefined" : o(t)) && (e = t, t = void 0), e = e || {}, e.path = e.path || "/socket.io", this.nsps = {}, this.subs = [], this.opts = e, this.reconnection(e.reconnection !== !1), this.reconnectionAttempts(e.reconnectionAttempts || 1 / 0), this.reconnectionDelay(e.reconnectionDelay || 1e3), this.reconnectionDelayMax(e.reconnectionDelayMax || 5e3), this.randomizationFactor(e.randomizationFactor || .5), this.backoff = new l({
                  min: this.reconnectionDelay(),
                  max: this.reconnectionDelayMax(),
                  jitter: this.randomizationFactor()
              }), this.timeout(null == e.timeout ? 2e4 : e.timeout), this.readyState = "closed", this.uri = t, this.connecting = [], this.lastPing = null, this.encoding = !1, this.packetBuffer = [];
              var n = e.parser || c;
              this.encoder = new n.Encoder, this.decoder = new n.Decoder, this.autoConnect = e.autoConnect !== !1, this.autoConnect && this.open()
          }
  
          var o = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (t) {
                  return typeof t
              } : function (t) {
                  return t && "function" == typeof Symbol && t.constructor === Symbol && t !== Symbol.prototype ? "symbol" : typeof t
              }, i = n(13), s = n(36), a = n(8), c = n(7), p = n(38), u = n(39), h = n(3)("socket.io-client:manager"),
              f = n(35), l = n(40), d = Object.prototype.hasOwnProperty;
          t.exports = r, r.prototype.emitAll = function () {
              this.emit.apply(this, arguments);
              for (var t in this.nsps) d.call(this.nsps, t) && this.nsps[t].emit.apply(this.nsps[t], arguments)
          }, r.prototype.updateSocketIds = function () {
              for (var t in this.nsps) d.call(this.nsps, t) && (this.nsps[t].id = this.generateId(t))
          }, r.prototype.generateId = function (t) {
              return ("/" === t ? "" : t + "#") + this.engine.id
          }, a(r.prototype), r.prototype.reconnection = function (t) {
              return arguments.length ? (this._reconnection = !!t, this) : this._reconnection
          }, r.prototype.reconnectionAttempts = function (t) {
              return arguments.length ? (this._reconnectionAttempts = t, this) : this._reconnectionAttempts
          }, r.prototype.reconnectionDelay = function (t) {
              return arguments.length ? (this._reconnectionDelay = t, this.backoff && this.backoff.setMin(t), this) : this._reconnectionDelay
          }, r.prototype.randomizationFactor = function (t) {
              return arguments.length ? (this._randomizationFactor = t, this.backoff && this.backoff.setJitter(t), this) : this._randomizationFactor
          }, r.prototype.reconnectionDelayMax = function (t) {
              return arguments.length ? (this._reconnectionDelayMax = t, this.backoff && this.backoff.setMax(t), this) : this._reconnectionDelayMax
          }, r.prototype.timeout = function (t) {
              return arguments.length ? (this._timeout = t, this) : this._timeout
          }, r.prototype.maybeReconnectOnOpen = function () {
              !this.reconnecting && this._reconnection && 0 === this.backoff.attempts && this.reconnect()
          }, r.prototype.open = r.prototype.connect = function (t, e) {
              if (h("readyState %s", this.readyState), ~this.readyState.indexOf("open")) return this;
              h("opening %s", this.uri), this.engine = i(this.uri, this.opts);
              var n = this.engine, r = this;
              this.readyState = "opening", this.skipReconnect = !1;
              var o = p(n, "open", function () {
                  r.onopen(), t && t()
              }), s = p(n, "error", function (e) {
                  if (h("connect_error"), r.cleanup(), r.readyState = "closed", r.emitAll("connect_error", e), t) {
                      var n = new Error("Connection error");
                      n.data = e, t(n)
                  } else r.maybeReconnectOnOpen()
              });
              if (!1 !== this._timeout) {
                  var a = this._timeout;
                  h("connect attempt will timeout after %d", a);
                  var c = setTimeout(function () {
                      h("connect attempt timed out after %d", a), o.destroy(), n.close(), n.emit("error", "timeout"), r.emitAll("connect_timeout", a)
                  }, a);
                  this.subs.push({
                      destroy: function () {
                          clearTimeout(c)
                      }
                  })
              }
              return this.subs.push(o), this.subs.push(s), this
          }, r.prototype.onopen = function () {
              h("open"), this.cleanup(), this.readyState = "open", this.emit("open");
              var t = this.engine;
              this.subs.push(p(t, "data", u(this, "ondata"))), this.subs.push(p(t, "ping", u(this, "onping"))), this.subs.push(p(t, "pong", u(this, "onpong"))), this.subs.push(p(t, "error", u(this, "onerror"))), this.subs.push(p(t, "close", u(this, "onclose"))), this.subs.push(p(this.decoder, "decoded", u(this, "ondecoded")))
          }, r.prototype.onping = function () {
              this.lastPing = new Date, this.emitAll("ping")
          }, r.prototype.onpong = function () {
              this.emitAll("pong", new Date - this.lastPing)
          }, r.prototype.ondata = function (t) {
              this.decoder.add(t)
          }, r.prototype.ondecoded = function (t) {
              this.emit("packet", t)
          }, r.prototype.onerror = function (t) {
              h("error", t), this.emitAll("error", t)
          }, r.prototype.socket = function (t, e) {
              function n() {
                  ~f(o.connecting, r) || o.connecting.push(r)
              }
  
              var r = this.nsps[t];
              if (!r) {
                  r = new s(this, t, e), this.nsps[t] = r;
                  var o = this;
                  r.on("connecting", n), r.on("connect", function () {
                      r.id = o.generateId(t)
                  }), this.autoConnect && n()
              }
              return r
          }, r.prototype.destroy = function (t) {
              var e = f(this.connecting, t);
              ~e && this.connecting.splice(e, 1), this.connecting.length || this.close()
          }, r.prototype.packet = function (t) {
              h("writing packet %j", t);
              var e = this;
              t.query && 0 === t.type && (t.nsp += "?" + t.query), e.encoding ? e.packetBuffer.push(t) : (e.encoding = !0, this.encoder.encode(t, function (n) {
                  for (var r = 0; r < n.length; r++) e.engine.write(n[r], t.options);
                  e.encoding = !1, e.processPacketQueue()
              }))
          }, r.prototype.processPacketQueue = function () {
              if (this.packetBuffer.length > 0 && !this.encoding) {
                  var t = this.packetBuffer.shift();
                  this.packet(t)
              }
          }, r.prototype.cleanup = function () {
              h("cleanup");
              for (var t = this.subs.length, e = 0; e < t; e++) {
                  var n = this.subs.shift();
                  n.destroy()
              }
              this.packetBuffer = [], this.encoding = !1, this.lastPing = null, this.decoder.destroy()
          }, r.prototype.close = r.prototype.disconnect = function () {
              h("disconnect"), this.skipReconnect = !0, this.reconnecting = !1, "opening" === this.readyState && this.cleanup(), this.backoff.reset(), this.readyState = "closed", this.engine && this.engine.close()
          }, r.prototype.onclose = function (t) {
              h("onclose"), this.cleanup(), this.backoff.reset(), this.readyState = "closed", this.emit("close", t), this._reconnection && !this.skipReconnect && this.reconnect()
          }, r.prototype.reconnect = function () {
              if (this.reconnecting || this.skipReconnect) return this;
              var t = this;
              if (this.backoff.attempts >= this._reconnectionAttempts) h("reconnect failed"), this.backoff.reset(), this.emitAll("reconnect_failed"), this.reconnecting = !1; else {
                  var e = this.backoff.duration();
                  h("will wait %dms before reconnect attempt", e), this.reconnecting = !0;
                  var n = setTimeout(function () {
                      t.skipReconnect || (h("attempting reconnect"), t.emitAll("reconnect_attempt", t.backoff.attempts), t.emitAll("reconnecting", t.backoff.attempts), t.skipReconnect || t.open(function (e) {
                          e ? (h("reconnect attempt error"), t.reconnecting = !1, t.reconnect(), t.emitAll("reconnect_error", e.data)) : (h("reconnect success"), t.onreconnect())
                      }))
                  }, e);
                  this.subs.push({
                      destroy: function () {
                          clearTimeout(n)
                      }
                  })
              }
          }, r.prototype.onreconnect = function () {
              var t = this.backoff.attempts;
              this.reconnecting = !1, this.backoff.reset(), this.updateSocketIds(), this.emitAll("reconnect", t)
          }
      }, function (t, e, n) {
          t.exports = n(14), t.exports.parser = n(21)
      }, function (t, e, n) {
          function r(t, e) {
              return this instanceof r ? (e = e || {}, t && "object" == typeof t && (e = t, t = null), t ? (t = u(t), e.hostname = t.host, e.secure = "https" === t.protocol || "wss" === t.protocol, e.port = t.port, t.query && (e.query = t.query)) : e.host && (e.hostname = u(e.host).host), this.secure = null != e.secure ? e.secure : "undefined" != typeof location && "https:" === location.protocol, e.hostname && !e.port && (e.port = this.secure ? "443" : "80"), this.agent = e.agent || !1, this.hostname = e.hostname || ("undefined" != typeof location ? location.hostname : "localhost"), this.port = e.port || ("undefined" != typeof location && location.port ? location.port : this.secure ? 443 : 80), this.query = e.query || {}, "string" == typeof this.query && (this.query = h.decode(this.query)), this.upgrade = !1 !== e.upgrade, this.path = (e.path || "/engine.io").replace(/\/$/, "") + "/", this.forceJSONP = !!e.forceJSONP, this.jsonp = !1 !== e.jsonp, this.forceBase64 = !!e.forceBase64, this.enablesXDR = !!e.enablesXDR, this.timestampParam = e.timestampParam || "t", this.timestampRequests = e.timestampRequests, this.transports = e.transports || ["polling", "websocket"], this.transportOptions = e.transportOptions || {}, this.readyState = "", this.writeBuffer = [], this.prevBufferLen = 0, this.policyPort = e.policyPort || 843, this.rememberUpgrade = e.rememberUpgrade || !1, this.binaryType = null, this.onlyBinaryUpgrades = e.onlyBinaryUpgrades, this.perMessageDeflate = !1 !== e.perMessageDeflate && (e.perMessageDeflate || {}), !0 === this.perMessageDeflate && (this.perMessageDeflate = {}), this.perMessageDeflate && null == this.perMessageDeflate.threshold && (this.perMessageDeflate.threshold = 1024), this.pfx = e.pfx || null, this.key = e.key || null, this.passphrase = e.passphrase || null, this.cert = e.cert || null, this.ca = e.ca || null, this.ciphers = e.ciphers || null, this.rejectUnauthorized = void 0 === e.rejectUnauthorized || e.rejectUnauthorized, this.forceNode = !!e.forceNode, this.isReactNative = "undefined" != typeof navigator && "string" == typeof navigator.product && "reactnative" === navigator.product.toLowerCase(), ("undefined" == typeof self || this.isReactNative) && (e.extraHeaders && Object.keys(e.extraHeaders).length > 0 && (this.extraHeaders = e.extraHeaders), e.localAddress && (this.localAddress = e.localAddress)), this.id = null, this.upgrades = null, this.pingInterval = null, this.pingTimeout = null, this.pingIntervalTimer = null, this.pingTimeoutTimer = null, void this.open()) : new r(t, e)
          }
  
          function o(t) {
              var e = {};
              for (var n in t) t.hasOwnProperty(n) && (e[n] = t[n]);
              return e
          }
  
          var i = n(15), s = n(8), a = n(3)("engine.io-client:socket"), c = n(35), p = n(21), u = n(2), h = n(29);
          t.exports = r, r.priorWebsocketSuccess = !1, s(r.prototype), r.protocol = p.protocol, r.Socket = r, r.Transport = n(20), r.transports = n(15), r.parser = n(21), r.prototype.createTransport = function (t) {
              a('creating transport "%s"', t);
              var e = o(this.query);
              e.EIO = p.protocol, e.transport = t;
              var n = this.transportOptions[t] || {};
              this.id && (e.sid = this.id);
              var r = new i[t]({
                  query: e,
                  socket: this,
                  agent: n.agent || this.agent,
                  hostname: n.hostname || this.hostname,
                  port: n.port || this.port,
                  secure: n.secure || this.secure,
                  path: n.path || this.path,
                  forceJSONP: n.forceJSONP || this.forceJSONP,
                  jsonp: n.jsonp || this.jsonp,
                  forceBase64: n.forceBase64 || this.forceBase64,
                  enablesXDR: n.enablesXDR || this.enablesXDR,
                  timestampRequests: n.timestampRequests || this.timestampRequests,
                  timestampParam: n.timestampParam || this.timestampParam,
                  policyPort: n.policyPort || this.policyPort,
                  pfx: n.pfx || this.pfx,
                  key: n.key || this.key,
                  passphrase: n.passphrase || this.passphrase,
                  cert: n.cert || this.cert,
                  ca: n.ca || this.ca,
                  ciphers: n.ciphers || this.ciphers,
                  rejectUnauthorized: n.rejectUnauthorized || this.rejectUnauthorized,
                  perMessageDeflate: n.perMessageDeflate || this.perMessageDeflate,
                  extraHeaders: n.extraHeaders || this.extraHeaders,
                  forceNode: n.forceNode || this.forceNode,
                  localAddress: n.localAddress || this.localAddress,
                  requestTimeout: n.requestTimeout || this.requestTimeout,
                  protocols: n.protocols || void 0,
                  isReactNative: this.isReactNative
              });
              return r
          }, r.prototype.open = function () {
              var t;
              if (this.rememberUpgrade && r.priorWebsocketSuccess && this.transports.indexOf("websocket") !== -1) t = "websocket"; else {
                  if (0 === this.transports.length) {
                      var e = this;
                      return void setTimeout(function () {
                          e.emit("error", "No transports available")
                      }, 0)
                  }
                  t = this.transports[0]
              }
              this.readyState = "opening";
              try {
                  t = this.createTransport(t)
              } catch (n) {
                  return this.transports.shift(), void this.open()
              }
              t.open(), this.setTransport(t)
          }, r.prototype.setTransport = function (t) {
              a("setting transport %s", t.name);
              var e = this;
              this.transport && (a("clearing existing transport %s", this.transport.name), this.transport.removeAllListeners()), this.transport = t, t.on("drain", function () {
                  e.onDrain()
              }).on("packet", function (t) {
                  e.onPacket(t)
              }).on("error", function (t) {
                  e.onError(t)
              }).on("close", function () {
                  e.onClose("transport close")
              })
          }, r.prototype.probe = function (t) {
              function e() {
                  if (f.onlyBinaryUpgrades) {
                      var e = !this.supportsBinary && f.transport.supportsBinary;
                      h = h || e
                  }
                  h || (a('probe transport "%s" opened', t), u.send([{
                      type: "ping",
                      data: "probe"
                  }]), u.once("packet", function (e) {
                      if (!h) if ("pong" === e.type && "probe" === e.data) {
                          if (a('probe transport "%s" pong', t), f.upgrading = !0, f.emit("upgrading", u), !u) return;
                          r.priorWebsocketSuccess = "websocket" === u.name, a('pausing current transport "%s"', f.transport.name), f.transport.pause(function () {
                              h || "closed" !== f.readyState && (a("changing transport and sending upgrade packet"), p(), f.setTransport(u), u.send([{type: "upgrade"}]), f.emit("upgrade", u), u = null, f.upgrading = !1, f.flush())
                          })
                      } else {
                          a('probe transport "%s" failed', t);
                          var n = new Error("probe error");
                          n.transport = u.name, f.emit("upgradeError", n)
                      }
                  }))
              }
  
              function n() {
                  h || (h = !0, p(), u.close(), u = null)
              }
  
              function o(e) {
                  var r = new Error("probe error: " + e);
                  r.transport = u.name, n(), a('probe transport "%s" failed because of error: %s', t, e), f.emit("upgradeError", r)
              }
  
              function i() {
                  o("transport closed")
              }
  
              function s() {
                  o("socket closed")
              }
  
              function c(t) {
                  u && t.name !== u.name && (a('"%s" works - aborting "%s"', t.name, u.name), n())
              }
  
              function p() {
                  u.removeListener("open", e), u.removeListener("error", o), u.removeListener("close", i), f.removeListener("close", s), f.removeListener("upgrading", c)
              }
  
              a('probing transport "%s"', t);
              var u = this.createTransport(t, {probe: 1}), h = !1, f = this;
              r.priorWebsocketSuccess = !1, u.once("open", e), u.once("error", o), u.once("close", i), this.once("close", s), this.once("upgrading", c), u.open()
          }, r.prototype.onOpen = function () {
              if (a("socket open"), this.readyState = "open", r.priorWebsocketSuccess = "websocket" === this.transport.name, this.emit("open"), this.flush(), "open" === this.readyState && this.upgrade && this.transport.pause) {
                  a("starting upgrade probes");
                  for (var t = 0, e = this.upgrades.length; t < e; t++) this.probe(this.upgrades[t])
              }
          }, r.prototype.onPacket = function (t) {
              if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) switch (a('socket receive: type "%s", data "%s"', t.type, t.data), this.emit("packet", t), this.emit("heartbeat"), t.type) {
                  case"open":
                      this.onHandshake(JSON.parse(t.data));
                      break;
                  case"pong":
                      this.setPing(), this.emit("pong");
                      break;
                  case"error":
                      var e = new Error("server error");
                      e.code = t.data, this.onError(e);
                      break;
                  case"message":
                      this.emit("data", t.data), this.emit("message", t.data)
              } else a('packet received with socket readyState "%s"', this.readyState)
          }, r.prototype.onHandshake = function (t) {
              this.emit("handshake", t), this.id = t.sid, this.transport.query.sid = t.sid, this.upgrades = this.filterUpgrades(t.upgrades), this.pingInterval = t.pingInterval, this.pingTimeout = t.pingTimeout, this.onOpen(), "closed" !== this.readyState && (this.setPing(), this.removeListener("heartbeat", this.onHeartbeat), this.on("heartbeat", this.onHeartbeat))
          }, r.prototype.onHeartbeat = function (t) {
              clearTimeout(this.pingTimeoutTimer);
              var e = this;
              e.pingTimeoutTimer = setTimeout(function () {
                  "closed" !== e.readyState && e.onClose("ping timeout")
              }, t || e.pingInterval + e.pingTimeout)
          }, r.prototype.setPing = function () {
              var t = this;
              clearTimeout(t.pingIntervalTimer), t.pingIntervalTimer = setTimeout(function () {
                  a("writing ping packet - expecting pong within %sms", t.pingTimeout), t.ping(), t.onHeartbeat(t.pingTimeout)
              }, t.pingInterval)
          }, r.prototype.ping = function () {
              var t = this;
              this.sendPacket("ping", function () {
                  t.emit("ping")
              })
          }, r.prototype.onDrain = function () {
              this.writeBuffer.splice(0, this.prevBufferLen), this.prevBufferLen = 0, 0 === this.writeBuffer.length ? this.emit("drain") : this.flush()
          }, r.prototype.flush = function () {
              "closed" !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length && (a("flushing %d packets in socket", this.writeBuffer.length), this.transport.send(this.writeBuffer), this.prevBufferLen = this.writeBuffer.length, this.emit("flush"))
          }, r.prototype.write = r.prototype.send = function (t, e, n) {
              return this.sendPacket("message", t, e, n), this
          }, r.prototype.sendPacket = function (t, e, n, r) {
              if ("function" == typeof e && (r = e, e = void 0), "function" == typeof n && (r = n, n = null), "closing" !== this.readyState && "closed" !== this.readyState) {
                  n = n || {}, n.compress = !1 !== n.compress;
                  var o = {type: t, data: e, options: n};
                  this.emit("packetCreate", o), this.writeBuffer.push(o), r && this.once("flush", r), this.flush()
              }
          }, r.prototype.close = function () {
              function t() {
                  r.onClose("forced close"), a("socket closing - telling transport to close"), r.transport.close()
              }
  
              function e() {
                  r.removeListener("upgrade", e), r.removeListener("upgradeError", e), t()
              }
  
              function n() {
                  r.once("upgrade", e), r.once("upgradeError", e)
              }
  
              if ("opening" === this.readyState || "open" === this.readyState) {
                  this.readyState = "closing";
                  var r = this;
                  this.writeBuffer.length ? this.once("drain", function () {
                      this.upgrading ? n() : t()
                  }) : this.upgrading ? n() : t()
              }
              return this
          }, r.prototype.onError = function (t) {
              a("socket error %j", t), r.priorWebsocketSuccess = !1, this.emit("error", t), this.onClose("transport error", t)
          }, r.prototype.onClose = function (t, e) {
              if ("opening" === this.readyState || "open" === this.readyState || "closing" === this.readyState) {
                  a('socket close with reason: "%s"', t);
                  var n = this;
                  clearTimeout(this.pingIntervalTimer), clearTimeout(this.pingTimeoutTimer), this.transport.removeAllListeners("close"), this.transport.close(), this.transport.removeAllListeners(), this.readyState = "closed", this.id = null, this.emit("close", t, e), n.writeBuffer = [], n.prevBufferLen = 0
              }
          }, r.prototype.filterUpgrades = function (t) {
              for (var e = [], n = 0, r = t.length; n < r; n++) ~c(this.transports, t[n]) && e.push(t[n]);
              return e
          }
      }, function (t, e, n) {
          function r(t) {
              var e, n = !1, r = !1, a = !1 !== t.jsonp;
              if ("undefined" != typeof location) {
                  var c = "https:" === location.protocol, p = location.port;
                  p || (p = c ? 443 : 80), n = t.hostname !== location.hostname || p !== t.port, r = t.secure !== c
              }
              if (t.xdomain = n, t.xscheme = r, e = new o(t), "open" in e && !t.forceJSONP) return new i(t);
              if (!a) throw new Error("JSONP disabled");
              return new s(t)
          }
  
          var o = n(16), i = n(18), s = n(32), a = n(33);
          e.polling = r, e.websocket = a
      }, function (t, e, n) {
          var r = n(17);
          t.exports = function (t) {
              var e = t.xdomain, n = t.xscheme, o = t.enablesXDR;
              try {
                  if ("undefined" != typeof XMLHttpRequest && (!e || r)) return new XMLHttpRequest
              } catch (i) {
              }
              try {
                  if ("undefined" != typeof XDomainRequest && !n && o) return new XDomainRequest
              } catch (i) {
              }
              if (!e) try {
                  return new (self[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")
              } catch (i) {
              }
          }
      }, function (t, e) {
          try {
              t.exports = "undefined" != typeof XMLHttpRequest && "withCredentials" in new XMLHttpRequest
          } catch (n) {
              t.exports = !1
          }
      }, function (t, e, n) {
          function r() {
          }
  
          function o(t) {
              if (c.call(this, t), this.requestTimeout = t.requestTimeout, this.extraHeaders = t.extraHeaders, "undefined" != typeof location) {
                  var e = "https:" === location.protocol, n = location.port;
                  n || (n = e ? 443 : 80), this.xd = "undefined" != typeof location && t.hostname !== location.hostname || n !== t.port, this.xs = t.secure !== e
              }
          }
  
          function i(t) {
              this.method = t.method || "GET", this.uri = t.uri, this.xd = !!t.xd, this.xs = !!t.xs, this.async = !1 !== t.async, this.data = void 0 !== t.data ? t.data : null, this.agent = t.agent, this.isBinary = t.isBinary, this.supportsBinary = t.supportsBinary, this.enablesXDR = t.enablesXDR, this.requestTimeout = t.requestTimeout, this.pfx = t.pfx, this.key = t.key, this.passphrase = t.passphrase, this.cert = t.cert, this.ca = t.ca, this.ciphers = t.ciphers, this.rejectUnauthorized = t.rejectUnauthorized, this.extraHeaders = t.extraHeaders, this.create()
          }
  
          function s() {
              for (var t in i.requests) i.requests.hasOwnProperty(t) && i.requests[t].abort()
          }
  
          var a = n(16), c = n(19), p = n(8), u = n(30), h = n(3)("engine.io-client:polling-xhr");
          if (t.exports = o, t.exports.Request = i, u(o, c), o.prototype.supportsBinary = !0, o.prototype.request = function (t) {
              return t = t || {}, t.uri = this.uri(), t.xd = this.xd, t.xs = this.xs, t.agent = this.agent || !1, t.supportsBinary = this.supportsBinary, t.enablesXDR = this.enablesXDR, t.pfx = this.pfx, t.key = this.key, t.passphrase = this.passphrase, t.cert = this.cert, t.ca = this.ca, t.ciphers = this.ciphers, t.rejectUnauthorized = this.rejectUnauthorized, t.requestTimeout = this.requestTimeout, t.extraHeaders = this.extraHeaders, new i(t)
          }, o.prototype.doWrite = function (t, e) {
              var n = "string" != typeof t && void 0 !== t, r = this.request({method: "POST", data: t, isBinary: n}),
                  o = this;
              r.on("success", e), r.on("error", function (t) {
                  o.onError("xhr post error", t)
              }), this.sendXhr = r
          }, o.prototype.doPoll = function () {
              h("xhr poll");
              var t = this.request(), e = this;
              t.on("data", function (t) {
                  e.onData(t)
              }), t.on("error", function (t) {
                  e.onError("xhr poll error", t)
              }), this.pollXhr = t
          }, p(i.prototype), i.prototype.create = function () {
              var t = {agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR};
              t.pfx = this.pfx, t.key = this.key, t.passphrase = this.passphrase, t.cert = this.cert, t.ca = this.ca, t.ciphers = this.ciphers, t.rejectUnauthorized = this.rejectUnauthorized;
              var e = this.xhr = new a(t), n = this;
              try {
                  h("xhr open %s: %s", this.method, this.uri), e.open(this.method, this.uri, this.async);
                  try {
                      if (this.extraHeaders) {
                          e.setDisableHeaderCheck && e.setDisableHeaderCheck(!0);
                          for (var r in this.extraHeaders) this.extraHeaders.hasOwnProperty(r) && e.setRequestHeader(r, this.extraHeaders[r])
                      }
                  } catch (o) {
                  }
                  if ("POST" === this.method) try {
                      this.isBinary ? e.setRequestHeader("Content-type", "application/octet-stream") : e.setRequestHeader("Content-type", "text/plain;charset=UTF-8")
                  } catch (o) {
                  }
                  try {
                      e.setRequestHeader("Accept", "*/*")
                  } catch (o) {
                  }
                  "withCredentials" in e && (e.withCredentials = !0), this.requestTimeout && (e.timeout = this.requestTimeout), this.hasXDR() ? (e.onload = function () {
                      n.onLoad()
                  }, e.onerror = function () {
                      n.onError(e.responseText)
                  }) : e.onreadystatechange = function () {
                      if (2 === e.readyState) try {
                          var t = e.getResponseHeader("Content-Type");
                          n.supportsBinary && "application/octet-stream" === t && (e.responseType = "arraybuffer")
                      } catch (r) {
                      }
                      4 === e.readyState && (200 === e.status || 1223 === e.status ? n.onLoad() : setTimeout(function () {
                          n.onError(e.status)
                      }, 0))
                  }, h("xhr data %s", this.data), e.send(this.data)
              } catch (o) {
                  return void setTimeout(function () {
                      n.onError(o)
                  }, 0)
              }
              "undefined" != typeof document && (this.index = i.requestsCount++, i.requests[this.index] = this)
          }, i.prototype.onSuccess = function () {
              this.emit("success"), this.cleanup()
          }, i.prototype.onData = function (t) {
              this.emit("data", t), this.onSuccess()
          }, i.prototype.onError = function (t) {
              this.emit("error", t), this.cleanup(!0)
          }, i.prototype.cleanup = function (t) {
              if ("undefined" != typeof this.xhr && null !== this.xhr) {
                  if (this.hasXDR() ? this.xhr.onload = this.xhr.onerror = r : this.xhr.onreadystatechange = r, t) try {
                      this.xhr.abort()
                  } catch (e) {
                  }
                  "undefined" != typeof document && delete i.requests[this.index], this.xhr = null
              }
          }, i.prototype.onLoad = function () {
              var t;
              try {
                  var e;
                  try {
                      e = this.xhr.getResponseHeader("Content-Type")
                  } catch (n) {
                  }
                  t = "application/octet-stream" === e ? this.xhr.response || this.xhr.responseText : this.xhr.responseText
              } catch (n) {
                  this.onError(n)
              }
              null != t && this.onData(t)
          }, i.prototype.hasXDR = function () {
              return "undefined" != typeof XDomainRequest && !this.xs && this.enablesXDR
          }, i.prototype.abort = function () {
              this.cleanup()
          }, i.requestsCount = 0, i.requests = {}, "undefined" != typeof document) if ("function" == typeof attachEvent) attachEvent("onunload", s); else if ("function" == typeof addEventListener) {
              var f = "onpagehide" in self ? "pagehide" : "unload";
              addEventListener(f, s, !1)
          }
      }, function (t, e, n) {
          function r(t) {
              var e = t && t.forceBase64;
              u && !e || (this.supportsBinary = !1), o.call(this, t)
          }
  
          var o = n(20), i = n(29), s = n(21), a = n(30), c = n(31), p = n(3)("engine.io-client:polling");
          t.exports = r;
          var u = function () {
              var t = n(16), e = new t({xdomain: !1});
              return null != e.responseType
          }();
          a(r, o), r.prototype.name = "polling", r.prototype.doOpen = function () {
              this.poll()
          }, r.prototype.pause = function (t) {
              function e() {
                  p("paused"), n.readyState = "paused", t()
              }
  
              var n = this;
              if (this.readyState = "pausing", this.polling || !this.writable) {
                  var r = 0;
                  this.polling && (p("we are currently polling - waiting to pause"), r++, this.once("pollComplete", function () {
                      p("pre-pause polling complete"), --r || e()
                  })), this.writable || (p("we are currently writing - waiting to pause"), r++, this.once("drain", function () {
                      p("pre-pause writing complete"), --r || e()
                  }))
              } else e()
          }, r.prototype.poll = function () {
              p("polling"), this.polling = !0, this.doPoll(), this.emit("poll")
          }, r.prototype.onData = function (t) {
              var e = this;
              p("polling got data %s", t);
              var n = function (t, n, r) {
                  return "opening" === e.readyState && e.onOpen(), "close" === t.type ? (e.onClose(), !1) : void e.onPacket(t)
              };
              s.decodePayload(t, this.socket.binaryType, n), "closed" !== this.readyState && (this.polling = !1, this.emit("pollComplete"), "open" === this.readyState ? this.poll() : p('ignoring poll - transport state "%s"', this.readyState))
          }, r.prototype.doClose = function () {
              function t() {
                  p("writing close packet"), e.write([{type: "close"}])
              }
  
              var e = this;
              "open" === this.readyState ? (p("transport open - closing"), t()) : (p("transport not open - deferring close"), this.once("open", t))
          }, r.prototype.write = function (t) {
              var e = this;
              this.writable = !1;
              var n = function () {
                  e.writable = !0, e.emit("drain")
              };
              s.encodePayload(t, this.supportsBinary, function (t) {
                  e.doWrite(t, n)
              })
          }, r.prototype.uri = function () {
              var t = this.query || {}, e = this.secure ? "https" : "http", n = "";
              !1 !== this.timestampRequests && (t[this.timestampParam] = c()), this.supportsBinary || t.sid || (t.b64 = 1), t = i.encode(t), this.port && ("https" === e && 443 !== Number(this.port) || "http" === e && 80 !== Number(this.port)) && (n = ":" + this.port), t.length && (t = "?" + t);
              var r = this.hostname.indexOf(":") !== -1;
              return e + "://" + (r ? "[" + this.hostname + "]" : this.hostname) + n + this.path + t
          }
      }, function (t, e, n) {
          function r(t) {
              this.path = t.path, this.hostname = t.hostname, this.port = t.port, this.secure = t.secure, this.query = t.query, this.timestampParam = t.timestampParam, this.timestampRequests = t.timestampRequests, this.readyState = "", this.agent = t.agent || !1, this.socket = t.socket, this.enablesXDR = t.enablesXDR, this.pfx = t.pfx, this.key = t.key, this.passphrase = t.passphrase, this.cert = t.cert, this.ca = t.ca, this.ciphers = t.ciphers, this.rejectUnauthorized = t.rejectUnauthorized, this.forceNode = t.forceNode, this.isReactNative = t.isReactNative, this.extraHeaders = t.extraHeaders, this.localAddress = t.localAddress
          }
  
          var o = n(21), i = n(8);
          t.exports = r, i(r.prototype), r.prototype.onError = function (t, e) {
              var n = new Error(t);
              return n.type = "TransportError", n.description = e, this.emit("error", n), this
          }, r.prototype.open = function () {
              return "closed" !== this.readyState && "" !== this.readyState || (this.readyState = "opening", this.doOpen()), this
          }, r.prototype.close = function () {
              return "opening" !== this.readyState && "open" !== this.readyState || (this.doClose(), this.onClose()), this
          }, r.prototype.send = function (t) {
              if ("open" !== this.readyState) throw new Error("Transport not open");
              this.write(t)
          }, r.prototype.onOpen = function () {
              this.readyState = "open", this.writable = !0, this.emit("open")
          }, r.prototype.onData = function (t) {
              var e = o.decodePacket(t, this.socket.binaryType);
              this.onPacket(e)
          }, r.prototype.onPacket = function (t) {
              this.emit("packet", t)
          }, r.prototype.onClose = function () {
              this.readyState = "closed", this.emit("close")
          }
      }, function (t, e, n) {
          function r(t, n) {
              var r = "b" + e.packets[t.type] + t.data.data;
              return n(r)
          }
  
          function o(t, n, r) {
              if (!n) return e.encodeBase64Packet(t, r);
              var o = t.data, i = new Uint8Array(o), s = new Uint8Array(1 + o.byteLength);
              s[0] = v[t.type];
              for (var a = 0; a < i.length; a++) s[a + 1] = i[a];
              return r(s.buffer)
          }
  
          function i(t, n, r) {
              if (!n) return e.encodeBase64Packet(t, r);
              var o = new FileReader;
              return o.onload = function () {
                  e.encodePacket({type: t.type, data: o.result}, n, !0, r)
              }, o.readAsArrayBuffer(t.data)
          }
  
          function s(t, n, r) {
              if (!n) return e.encodeBase64Packet(t, r);
              if (g) return i(t, n, r);
              var o = new Uint8Array(1);
              o[0] = v[t.type];
              var s = new k([o.buffer, t.data]);
              return r(s)
          }
  
          function a(t) {
              try {
                  t = d.decode(t, {strict: !1})
              } catch (e) {
                  return !1
              }
              return t
          }
  
          function c(t, e, n) {
              for (var r = new Array(t.length), o = l(t.length, n), i = function (t, n, o) {
                  e(n, function (e, n) {
                      r[t] = n, o(e, r)
                  })
              }, s = 0; s < t.length; s++) i(s, t[s], o)
          }
  
          var p, u = n(22), h = n(23), f = n(24), l = n(25), d = n(26);
          "undefined" != typeof ArrayBuffer && (p = n(27));
          var y = "undefined" != typeof navigator && /Android/i.test(navigator.userAgent),
              m = "undefined" != typeof navigator && /PhantomJS/i.test(navigator.userAgent), g = y || m;
          e.protocol = 3;
          var v = e.packets = {open: 0, close: 1, ping: 2, pong: 3, message: 4, upgrade: 5, noop: 6}, b = u(v),
              w = {type: "error", data: "parser error"}, k = n(28);
          e.encodePacket = function (t, e, n, i) {
              "function" == typeof e && (i = e, e = !1), "function" == typeof n && (i = n, n = null);
              var a = void 0 === t.data ? void 0 : t.data.buffer || t.data;
              if ("undefined" != typeof ArrayBuffer && a instanceof ArrayBuffer) return o(t, e, i);
              if ("undefined" != typeof k && a instanceof k) return s(t, e, i);
              if (a && a.base64) return r(t, i);
              var c = v[t.type];
              return void 0 !== t.data && (c += n ? d.encode(String(t.data), {strict: !1}) : String(t.data)), i("" + c)
          }, e.encodeBase64Packet = function (t, n) {
              var r = "b" + e.packets[t.type];
              if ("undefined" != typeof k && t.data instanceof k) {
                  var o = new FileReader;
                  return o.onload = function () {
                      var t = o.result.split(",")[1];
                      n(r + t)
                  }, o.readAsDataURL(t.data)
              }
              var i;
              try {
                  i = String.fromCharCode.apply(null, new Uint8Array(t.data))
              } catch (s) {
                  for (var a = new Uint8Array(t.data), c = new Array(a.length), p = 0; p < a.length; p++) c[p] = a[p];
                  i = String.fromCharCode.apply(null, c)
              }
              return r += btoa(i), n(r)
          }, e.decodePacket = function (t, n, r) {
              if (void 0 === t) return w;
              if ("string" == typeof t) {
                  if ("b" === t.charAt(0)) return e.decodeBase64Packet(t.substr(1), n);
                  if (r && (t = a(t), t === !1)) return w;
                  var o = t.charAt(0);
                  return Number(o) == o && b[o] ? t.length > 1 ? {type: b[o], data: t.substring(1)} : {type: b[o]} : w
              }
              var i = new Uint8Array(t), o = i[0], s = f(t, 1);
              return k && "blob" === n && (s = new k([s])), {type: b[o], data: s}
          }, e.decodeBase64Packet = function (t, e) {
              var n = b[t.charAt(0)];
              if (!p) return {type: n, data: {base64: !0, data: t.substr(1)}};
              var r = p.decode(t.substr(1));
              return "blob" === e && k && (r = new k([r])), {type: n, data: r}
          }, e.encodePayload = function (t, n, r) {
              function o(t) {
                  return t.length + ":" + t
              }
  
              function i(t, r) {
                  e.encodePacket(t, !!s && n, !1, function (t) {
                      r(null, o(t))
                  })
              }
  
              "function" == typeof n && (r = n, n = null);
              var s = h(t);
              return n && s ? k && !g ? e.encodePayloadAsBlob(t, r) : e.encodePayloadAsArrayBuffer(t, r) : t.length ? void c(t, i, function (t, e) {
                  return r(e.join(""))
              }) : r("0:")
          }, e.decodePayload = function (t, n, r) {
              if ("string" != typeof t) return e.decodePayloadAsBinary(t, n, r);
              "function" == typeof n && (r = n, n = null);
              var o;
              if ("" === t) return r(w, 0, 1);
              for (var i, s, a = "", c = 0, p = t.length; c < p; c++) {
                  var u = t.charAt(c);
                  if (":" === u) {
                      if ("" === a || a != (i = Number(a))) return r(w, 0, 1);
                      if (s = t.substr(c + 1, i), a != s.length) return r(w, 0, 1);
                      if (s.length) {
                          if (o = e.decodePacket(s, n, !1), w.type === o.type && w.data === o.data) return r(w, 0, 1);
                          var h = r(o, c + i, p);
                          if (!1 === h) return
                      }
                      c += i, a = ""
                  } else a += u
              }
              return "" !== a ? r(w, 0, 1) : void 0
          }, e.encodePayloadAsArrayBuffer = function (t, n) {
              function r(t, n) {
                  e.encodePacket(t, !0, !0, function (t) {
                      return n(null, t)
                  })
              }
  
              return t.length ? void c(t, r, function (t, e) {
                  var r = e.reduce(function (t, e) {
                      var n;
                      return n = "string" == typeof e ? e.length : e.byteLength, t + n.toString().length + n + 2
                  }, 0), o = new Uint8Array(r), i = 0;
                  return e.forEach(function (t) {
                      var e = "string" == typeof t, n = t;
                      if (e) {
                          for (var r = new Uint8Array(t.length), s = 0; s < t.length; s++) r[s] = t.charCodeAt(s);
                          n = r.buffer
                      }
                      e ? o[i++] = 0 : o[i++] = 1;
                      for (var a = n.byteLength.toString(), s = 0; s < a.length; s++) o[i++] = parseInt(a[s]);
                      o[i++] = 255;
                      for (var r = new Uint8Array(n), s = 0; s < r.length; s++) o[i++] = r[s]
                  }), n(o.buffer)
              }) : n(new ArrayBuffer(0))
          }, e.encodePayloadAsBlob = function (t, n) {
              function r(t, n) {
                  e.encodePacket(t, !0, !0, function (t) {
                      var e = new Uint8Array(1);
                      if (e[0] = 1, "string" == typeof t) {
                          for (var r = new Uint8Array(t.length), o = 0; o < t.length; o++) r[o] = t.charCodeAt(o);
                          t = r.buffer, e[0] = 0
                      }
                      for (var i = t instanceof ArrayBuffer ? t.byteLength : t.size, s = i.toString(), a = new Uint8Array(s.length + 1), o = 0; o < s.length; o++) a[o] = parseInt(s[o]);
                      if (a[s.length] = 255, k) {
                          var c = new k([e.buffer, a.buffer, t]);
                          n(null, c)
                      }
                  })
              }
  
              c(t, r, function (t, e) {
                  return n(new k(e))
              })
          }, e.decodePayloadAsBinary = function (t, n, r) {
              "function" == typeof n && (r = n, n = null);
              for (var o = t, i = []; o.byteLength > 0;) {
                  for (var s = new Uint8Array(o), a = 0 === s[0], c = "", p = 1; 255 !== s[p]; p++) {
                      if (c.length > 310) return r(w, 0, 1);
                      c += s[p]
                  }
                  o = f(o, 2 + c.length), c = parseInt(c);
                  var u = f(o, 0, c);
                  if (a) try {
                      u = String.fromCharCode.apply(null, new Uint8Array(u))
                  } catch (h) {
                      var l = new Uint8Array(u);
                      u = "";
                      for (var p = 0; p < l.length; p++) u += String.fromCharCode(l[p])
                  }
                  i.push(u), o = f(o, c)
              }
              var d = i.length;
              i.forEach(function (t, o) {
                  r(e.decodePacket(t, n, !0), o, d)
              })
          }
      }, function (t, e) {
          t.exports = Object.keys || function (t) {
              var e = [], n = Object.prototype.hasOwnProperty;
              for (var r in t) n.call(t, r) && e.push(r);
              return e
          }
      }, function (t, e, n) {
          function r(t) {
              if (!t || "object" != typeof t) return !1;
              if (o(t)) {
                  for (var e = 0, n = t.length; e < n; e++) if (r(t[e])) return !0;
                  return !1
              }
              if ("function" == typeof Buffer && Buffer.isBuffer && Buffer.isBuffer(t) || "function" == typeof ArrayBuffer && t instanceof ArrayBuffer || s && t instanceof Blob || a && t instanceof File) return !0;
              if (t.toJSON && "function" == typeof t.toJSON && 1 === arguments.length) return r(t.toJSON(), !0);
              for (var i in t) if (Object.prototype.hasOwnProperty.call(t, i) && r(t[i])) return !0;
              return !1
          }
  
          var o = n(10), i = Object.prototype.toString,
              s = "function" == typeof Blob || "undefined" != typeof Blob && "[object BlobConstructor]" === i.call(Blob),
              a = "function" == typeof File || "undefined" != typeof File && "[object FileConstructor]" === i.call(File);
          t.exports = r
      }, function (t, e) {
          t.exports = function (t, e, n) {
              var r = t.byteLength;
              if (e = e || 0, n = n || r, t.slice) return t.slice(e, n);
              if (e < 0 && (e += r), n < 0 && (n += r), n > r && (n = r), e >= r || e >= n || 0 === r) return new ArrayBuffer(0);
              for (var o = new Uint8Array(t), i = new Uint8Array(n - e), s = e, a = 0; s < n; s++, a++) i[a] = o[s];
              return i.buffer
          }
      }, function (t, e) {
          function n(t, e, n) {
              function o(t, r) {
                  if (o.count <= 0) throw new Error("after called too many times");
                  --o.count, t ? (i = !0, e(t), e = n) : 0 !== o.count || i || e(null, r)
              }
  
              var i = !1;
              return n = n || r, o.count = t, 0 === t ? e() : o
          }
  
          function r() {
          }
  
          t.exports = n
      }, function (t, e) {
          function n(t) {
              for (var e, n, r = [], o = 0, i = t.length; o < i;) e = t.charCodeAt(o++), e >= 55296 && e <= 56319 && o < i ? (n = t.charCodeAt(o++), 56320 == (64512 & n) ? r.push(((1023 & e) << 10) + (1023 & n) + 65536) : (r.push(e), o--)) : r.push(e);
              return r
          }
  
          function r(t) {
              for (var e, n = t.length, r = -1, o = ""; ++r < n;) e = t[r], e > 65535 && (e -= 65536, o += d(e >>> 10 & 1023 | 55296), e = 56320 | 1023 & e), o += d(e);
              return o
          }
  
          function o(t, e) {
              if (t >= 55296 && t <= 57343) {
                  if (e) throw Error("Lone surrogate U+" + t.toString(16).toUpperCase() + " is not a scalar value");
                  return !1
              }
              return !0
          }
  
          function i(t, e) {
              return d(t >> e & 63 | 128)
          }
  
          function s(t, e) {
              if (0 == (4294967168 & t)) return d(t);
              var n = "";
              return 0 == (4294965248 & t) ? n = d(t >> 6 & 31 | 192) : 0 == (4294901760 & t) ? (o(t, e) || (t = 65533), n = d(t >> 12 & 15 | 224), n += i(t, 6)) : 0 == (4292870144 & t) && (n = d(t >> 18 & 7 | 240), n += i(t, 12), n += i(t, 6)), n += d(63 & t | 128)
          }
  
          function a(t, e) {
              e = e || {};
              for (var r, o = !1 !== e.strict, i = n(t), a = i.length, c = -1, p = ""; ++c < a;) r = i[c], p += s(r, o);
              return p
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          function c() {
              if (l >= f) throw Error("Invalid byte index");
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              if (l++, 128 == (192 & t)) return 63 & t;
              throw Error("Invalid continuation byte")
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          function p(t) {
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              if (l > f) throw Error("Invalid byte index");
              if (l == f) return !1;
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                  throw Error("Invalid continuation byte")
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                  throw Error("Invalid continuation byte")
              }
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              throw Error("Invalid UTF-8 detected")
          }
  
          function u(t, e) {
              e = e || {};
              var o = !1 !== e.strict;
              h = n(t), f = h.length, l = 0;
              for (var i, s = []; (i = p(o)) !== !1;) s.push(i);
              return r(s)
          }/*! https://mths.be/utf8js v2.1.2 by @mathias */
          var h, f, l, d = String.fromCharCode;
          t.exports = {version: "2.1.2", encode: a, decode: u}
      }, function (t, e) {
          !function () {
              "use strict";
              for (var t = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/", n = new Uint8Array(256), r = 0; r < t.length; r++) n[t.charCodeAt(r)] = r;
              e.encode = function (e) {
                  var n, r = new Uint8Array(e), o = r.length, i = "";
                  for (n = 0; n < o; n += 3) i += t[r[n] >> 2], i += t[(3 & r[n]) << 4 | r[n + 1] >> 4], i += t[(15 & r[n + 1]) << 2 | r[n + 2] >> 6], i += t[63 & r[n + 2]];
                  return o % 3 === 2 ? i = i.substring(0, i.length - 1) + "=" : o % 3 === 1 && (i = i.substring(0, i.length - 2) + "=="), i
              }, e.decode = function (t) {
                  var e, r, o, i, s, a = .75 * t.length, c = t.length, p = 0;
                  "=" === t[t.length - 1] && (a--, "=" === t[t.length - 2] && a--);
                  var u = new ArrayBuffer(a), h = new Uint8Array(u);
                  for (e = 0; e < c; e += 4) r = n[t.charCodeAt(e)], o = n[t.charCodeAt(e + 1)], i = n[t.charCodeAt(e + 2)], s = n[t.charCodeAt(e + 3)], h[p++] = r << 2 | o >> 4, h[p++] = (15 & o) << 4 | i >> 2, h[p++] = (3 & i) << 6 | 63 & s;
                  return u
              }
          }()
      }, function (t, e) {
          function n(t) {
              return t.map(function (t) {
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                      var e = t.buffer;
                      if (t.byteLength !== e.byteLength) {
                          var n = new Uint8Array(t.byteLength);
                          n.set(new Uint8Array(e, t.byteOffset, t.byteLength)), e = n.buffer
                      }
                      return e
                  }
                  return t
              })
          }
  
          function r(t, e) {
              e = e || {};
              var r = new i;
              return n(t).forEach(function (t) {
                  r.append(t)
              }), e.type ? r.getBlob(e.type) : r.getBlob()
          }
  
          function o(t, e) {
              return new Blob(n(t), e || {})
          }
  
          var i = "undefined" != typeof i ? i : "undefined" != typeof WebKitBlobBuilder ? WebKitBlobBuilder : "undefined" != typeof MSBlobBuilder ? MSBlobBuilder : "undefined" != typeof MozBlobBuilder && MozBlobBuilder,
              s = function () {
                  try {
                      var t = new Blob(["hi"]);
                      return 2 === t.size
                  } catch (e) {
                      return !1
                  }
              }(), a = s && function () {
                  try {
                      var t = new Blob([new Uint8Array([1, 2])]);
                      return 2 === t.size
                  } catch (e) {
                      return !1
                  }
              }(), c = i && i.prototype.append && i.prototype.getBlob;
          "undefined" != typeof Blob && (r.prototype = Blob.prototype, o.prototype = Blob.prototype), t.exports = function () {
              return s ? a ? Blob : o : c ? r : void 0
          }()
      }, function (t, e) {
          e.encode = function (t) {
              var e = "";
              for (var n in t) t.hasOwnProperty(n) && (e.length && (e += "&"), e += encodeURIComponent(n) + "=" + encodeURIComponent(t[n]));
              return e
          }, e.decode = function (t) {
              for (var e = {}, n = t.split("&"), r = 0, o = n.length; r < o; r++) {
                  var i = n[r].split("=");
                  e[decodeURIComponent(i[0])] = decodeURIComponent(i[1])
              }
              return e
          }
      }, function (t, e) {
          t.exports = function (t, e) {
              var n = function () {
              };
              n.prototype = e.prototype, t.prototype = new n, t.prototype.constructor = t
          }
      }, function (t, e) {
          "use strict";
  
          function n(t) {
              var e = "";
              do e = s[t % a] + e, t = Math.floor(t / a); while (t > 0);
              return e
          }
  
          function r(t) {
              var e = 0;
              for (u = 0; u < t.length; u++) e = e * a + c[t.charAt(u)];
              return e
          }
  
          function o() {
              var t = n(+new Date);
              return t !== i ? (p = 0, i = t) : t + "." + n(p++)
          }
  
          for (var i, s = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_".split(""), a = 64, c = {}, p = 0, u = 0; u < a; u++) c[s[u]] = u;
          o.encode = n, o.decode = r, t.exports = o
      }, function (t, e, n) {
          (function (e) {
              function r() {
              }
  
              function o() {
                  return "undefined" != typeof self ? self : "undefined" != typeof window ? window : "undefined" != typeof e ? e : {}
              }
  
              function i(t) {
                  if (s.call(this, t), this.query = this.query || {}, !c) {
                      var e = o();
                      c = e.___eio = e.___eio || []
                  }
                  this.index = c.length;
                  var n = this;
                  c.push(function (t) {
                      n.onData(t)
                  }), this.query.j = this.index, "function" == typeof addEventListener && addEventListener("beforeunload", function () {
                      n.script && (n.script.onerror = r)
                  }, !1)
              }
  
              var s = n(19), a = n(30);
              t.exports = i;
              var c, p = /\n/g, u = /\\n/g;
              a(i, s), i.prototype.supportsBinary = !1, i.prototype.doClose = function () {
                  this.script && (this.script.parentNode.removeChild(this.script), this.script = null), this.form && (this.form.parentNode.removeChild(this.form), this.form = null, this.iframe = null), s.prototype.doClose.call(this)
              }, i.prototype.doPoll = function () {
                  var t = this, e = document.createElement("script");
                  this.script && (this.script.parentNode.removeChild(this.script), this.script = null), e.async = !0, e.src = this.uri(), e.onerror = function (e) {
                      t.onError("jsonp poll error", e)
                  };
                  var n = document.getElementsByTagName("script")[0];
                  n ? n.parentNode.insertBefore(e, n) : (document.head || document.body).appendChild(e), this.script = e;
                  var r = "undefined" != typeof navigator && /gecko/i.test(navigator.userAgent);
                  r && setTimeout(function () {
                      var t = document.createElement("iframe");
                      document.body.appendChild(t), document.body.removeChild(t)
                  }, 100)
              }, i.prototype.doWrite = function (t, e) {
                  function n() {
                      r(), e()
                  }
  
                  function r() {
                      if (o.iframe) try {
                          o.form.removeChild(o.iframe)
                      } catch (t) {
                          o.onError("jsonp polling iframe removal error", t)
                      }
                      try {
                          var e = '<iframe src="javascript:0" name="' + o.iframeId + '">';
                          i = document.createElement(e)
                      } catch (t) {
                          i = document.createElement("iframe"), i.name = o.iframeId, i.src = "javascript:0"
                      }
                      i.id = o.iframeId, o.form.appendChild(i), o.iframe = i
                  }
  
                  var o = this;
                  if (!this.form) {
                      var i, s = document.createElement("form"), a = document.createElement("textarea"),
                          c = this.iframeId = "eio_iframe_" + this.index;
                      s.className = "socketio", s.style.position = "absolute", s.style.top = "-1000px", s.style.left = "-1000px", s.target = c, s.method = "POST", s.setAttribute("accept-charset", "utf-8"), a.name = "d", s.appendChild(a), document.body.appendChild(s), this.form = s, this.area = a
                  }
                  this.form.action = this.uri(), r(), t = t.replace(u, "\\\n"), this.area.value = t.replace(p, "\\n");
                  try {
                      this.form.submit()
                  } catch (h) {
                  }
                  this.iframe.attachEvent ? this.iframe.onreadystatechange = function () {
                      "complete" === o.iframe.readyState && n()
                  } : this.iframe.onload = n
              }
          }).call(e, function () {
              return this
          }())
      }, function (t, e, n) {
          function r(t) {
              var e = t && t.forceBase64;
              e && (this.supportsBinary = !1), this.perMessageDeflate = t.perMessageDeflate, this.usingBrowserWebSocket = o && !t.forceNode, this.protocols = t.protocols, this.usingBrowserWebSocket || (l = i), s.call(this, t)
          }
  
          var o, i, s = n(20), a = n(21), c = n(29), p = n(30), u = n(31), h = n(3)("engine.io-client:websocket");
          if ("undefined" == typeof self) try {
              i = n(34)
          } catch (f) {
          } else o = self.WebSocket || self.MozWebSocket;
          var l = o || i;
          t.exports = r, p(r, s), r.prototype.name = "websocket", r.prototype.supportsBinary = !0, r.prototype.doOpen = function () {
              if (this.check()) {
                  var t = this.uri(), e = this.protocols,
                      n = {agent: this.agent, perMessageDeflate: this.perMessageDeflate};
                  n.pfx = this.pfx, n.key = this.key, n.passphrase = this.passphrase, n.cert = this.cert, n.ca = this.ca, n.ciphers = this.ciphers, n.rejectUnauthorized = this.rejectUnauthorized, this.extraHeaders && (n.headers = this.extraHeaders), this.localAddress && (n.localAddress = this.localAddress);
                  try {
                      this.ws = this.usingBrowserWebSocket && !this.isReactNative ? e ? new l(t, e) : new l(t) : new l(t, e, n)
                  } catch (r) {
                      return this.emit("error", r)
                  }
                  void 0 === this.ws.binaryType && (this.supportsBinary = !1), this.ws.supports && this.ws.supports.binary ? (this.supportsBinary = !0, this.ws.binaryType = "nodebuffer") : this.ws.binaryType = "arraybuffer", this.addEventListeners()
              }
          }, r.prototype.addEventListeners = function () {
              var t = this;
              this.ws.onopen = function () {
                  t.onOpen()
              }, this.ws.onclose = function () {
                  t.onClose()
              }, this.ws.onmessage = function (e) {
                  t.onData(e.data)
              }, this.ws.onerror = function (e) {
                  t.onError("websocket error", e)
              }
          }, r.prototype.write = function (t) {
              function e() {
                  n.emit("flush"), setTimeout(function () {
                      n.writable = !0, n.emit("drain")
                  }, 0)
              }
  
              var n = this;
              this.writable = !1;
              for (var r = t.length, o = 0, i = r; o < i; o++) !function (t) {
                  a.encodePacket(t, n.supportsBinary, function (o) {
                      if (!n.usingBrowserWebSocket) {
                          var i = {};
                          if (t.options && (i.compress = t.options.compress), n.perMessageDeflate) {
                              var s = "string" == typeof o ? Buffer.byteLength(o) : o.length;
                              s < n.perMessageDeflate.threshold && (i.compress = !1)
                          }
                      }
                      try {
                          n.usingBrowserWebSocket ? n.ws.send(o) : n.ws.send(o, i)
                      } catch (a) {
                          h("websocket closed before onclose event")
                      }
                      --r || e()
                  })
              }(t[o])
          }, r.prototype.onClose = function () {
              s.prototype.onClose.call(this)
          }, r.prototype.doClose = function () {
              "undefined" != typeof this.ws && this.ws.close()
          }, r.prototype.uri = function () {
              var t = this.query || {}, e = this.secure ? "wss" : "ws", n = "";
              this.port && ("wss" === e && 443 !== Number(this.port) || "ws" === e && 80 !== Number(this.port)) && (n = ":" + this.port), this.timestampRequests && (t[this.timestampParam] = u()), this.supportsBinary || (t.b64 = 1), t = c.encode(t), t.length && (t = "?" + t);
              var r = this.hostname.indexOf(":") !== -1;
              return e + "://" + (r ? "[" + this.hostname + "]" : this.hostname) + n + this.path + t
          }, r.prototype.check = function () {
              return !(!l || "__initialize" in l && this.name === r.prototype.name)
          }
      }, function (t, e) {
      }, function (t, e) {
          var n = [].indexOf;
          t.exports = function (t, e) {
              if (n) return t.indexOf(e);
              for (var r = 0; r < t.length; ++r) if (t[r] === e) return r;
              return -1
          }
      }, function (t, e, n) {
          "use strict";
  
          function r(t, e, n) {
              this.io = t, this.nsp = e, this.json = this, this.ids = 0, this.acks = {}, this.receiveBuffer = [], this.sendBuffer = [], this.connected = !1, this.disconnected = !0, this.flags = {}, n && n.query && (this.query = n.query), this.io.autoConnect && this.open()
          }
  
          var o = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (t) {
                  return typeof t
              } : function (t) {
                  return t && "function" == typeof Symbol && t.constructor === Symbol && t !== Symbol.prototype ? "symbol" : typeof t
              }, i = n(7), s = n(8), a = n(37), c = n(38), p = n(39), u = n(3)("socket.io-client:socket"), h = n(29),
              f = n(23);
          t.exports = e = r;
          var l = {
              connect: 1,
              connect_error: 1,
              connect_timeout: 1,
              connecting: 1,
              disconnect: 1,
              error: 1,
              reconnect: 1,
              reconnect_attempt: 1,
              reconnect_failed: 1,
              reconnect_error: 1,
              reconnecting: 1,
              ping: 1,
              pong: 1
          }, d = s.prototype.emit;
          s(r.prototype), r.prototype.subEvents = function () {
              if (!this.subs) {
                  var t = this.io;
                  this.subs = [c(t, "open", p(this, "onopen")), c(t, "packet", p(this, "onpacket")), c(t, "close", p(this, "onclose"))]
              }
          }, r.prototype.open = r.prototype.connect = function () {
              return this.connected ? this : (this.subEvents(), this.io.open(), "open" === this.io.readyState && this.onopen(), this.emit("connecting"), this)
          }, r.prototype.send = function () {
              var t = a(arguments);
              return t.unshift("message"), this.emit.apply(this, t), this
          }, r.prototype.emit = function (t) {
              if (l.hasOwnProperty(t)) return d.apply(this, arguments), this;
              var e = a(arguments), n = {
                  type: (void 0 !== this.flags.binary ? this.flags.binary : f(e)) ? i.BINARY_EVENT : i.EVENT,
                  data: e
              };
              return n.options = {}, n.options.compress = !this.flags || !1 !== this.flags.compress, "function" == typeof e[e.length - 1] && (u("emitting packet with ack id %d", this.ids), this.acks[this.ids] = e.pop(), n.id = this.ids++), this.connected ? this.packet(n) : this.sendBuffer.push(n), this.flags = {}, this
          }, r.prototype.packet = function (t) {
              t.nsp = this.nsp, this.io.packet(t)
          }, r.prototype.onopen = function () {
              if (u("transport is open - connecting"), "/" !== this.nsp) if (this.query) {
                  var t = "object" === o(this.query) ? h.encode(this.query) : this.query;
                  u("sending connect packet with query %s", t), this.packet({type: i.CONNECT, query: t})
              } else this.packet({type: i.CONNECT})
          }, r.prototype.onclose = function (t) {
              u("close (%s)", t), this.connected = !1, this.disconnected = !0, delete this.id, this.emit("disconnect", t)
          }, r.prototype.onpacket = function (t) {
              var e = t.nsp === this.nsp, n = t.type === i.ERROR && "/" === t.nsp;
              if (e || n) switch (t.type) {
                  case i.CONNECT:
                      this.onconnect();
                      break;
                  case i.EVENT:
                      this.onevent(t);
                      break;
                  case i.BINARY_EVENT:
                      this.onevent(t);
                      break;
                  case i.ACK:
                      this.onack(t);
                      break;
                  case i.BINARY_ACK:
                      this.onack(t);
                      break;
                  case i.DISCONNECT:
                      this.ondisconnect();
                      break;
                  case i.ERROR:
                      this.emit("error", t.data)
              }
          }, r.prototype.onevent = function (t) {
              var e = t.data || [];
              u("emitting event %j", e), null != t.id && (u("attaching ack callback to event"), e.push(this.ack(t.id))), this.connected ? d.apply(this, e) : this.receiveBuffer.push(e)
          }, r.prototype.ack = function (t) {
              var e = this, n = !1;
              return function () {
                  if (!n) {
                      n = !0;
                      var r = a(arguments);
                      u("sending ack %j", r), e.packet({type: f(r) ? i.BINARY_ACK : i.ACK, id: t, data: r})
                  }
              }
          }, r.prototype.onack = function (t) {
              var e = this.acks[t.id];
              "function" == typeof e ? (u("calling ack %s with %j", t.id, t.data), e.apply(this, t.data), delete this.acks[t.id]) : u("bad ack %s", t.id)
          }, r.prototype.onconnect = function () {
              this.connected = !0, this.disconnected = !1, this.emit("connect"), this.emitBuffered()
          }, r.prototype.emitBuffered = function () {
              var t;
              for (t = 0; t < this.receiveBuffer.length; t++) d.apply(this, this.receiveBuffer[t]);
              for (this.receiveBuffer = [], t = 0; t < this.sendBuffer.length; t++) this.packet(this.sendBuffer[t]);
              this.sendBuffer = []
          }, r.prototype.ondisconnect = function () {
              u("server disconnect (%s)", this.nsp), this.destroy(), this.onclose("io server disconnect")
          }, r.prototype.destroy = function () {
              if (this.subs) {
                  for (var t = 0; t < this.subs.length; t++) this.subs[t].destroy();
                  this.subs = null
              }
              this.io.destroy(this)
          }, r.prototype.close = r.prototype.disconnect = function () {
              return this.connected && (u("performing disconnect (%s)", this.nsp), this.packet({type: i.DISCONNECT})), this.destroy(), this.connected && this.onclose("io client disconnect"), this
          }, r.prototype.compress = function (t) {
              return this.flags.compress = t, this
          }, r.prototype.binary = function (t) {
              return this.flags.binary = t, this
          }
      }, function (t, e) {
          function n(t, e) {
              var n = [];
              e = e || 0;
              for (var r = e || 0; r < t.length; r++) n[r - e] = t[r];
              return n
          }
  
          t.exports = n
      }, function (t, e) {
          "use strict";
  
          function n(t, e, n) {
              return t.on(e, n), {
                  destroy: function () {
                      t.removeListener(e, n)
                  }
              }
          }
  
          t.exports = n
      }, function (t, e) {
          var n = [].slice;
          t.exports = function (t, e) {
              if ("string" == typeof e && (e = t[e]), "function" != typeof e) throw new Error("bind() requires a function");
              var r = n.call(arguments, 2);
              return function () {
                  return e.apply(t, r.concat(n.call(arguments)))
              }
          }
      }, function (t, e) {
          function n(t) {
              t = t || {}, this.ms = t.min || 100, this.max = t.max || 1e4, this.factor = t.factor || 2, this.jitter = t.jitter > 0 && t.jitter <= 1 ? t.jitter : 0, this.attempts = 0
          }
  
          t.exports = n, n.prototype.duration = function () {
              var t = this.ms * Math.pow(this.factor, this.attempts++);
              if (this.jitter) {
                  var e = Math.random(), n = Math.floor(e * this.jitter * t);
                  t = 0 == (1 & Math.floor(10 * e)) ? t - n : t + n
              }
              return 0 | Math.min(t, this.max)
          }, n.prototype.reset = function () {
              this.attempts = 0
          }, n.prototype.setMin = function (t) {
              this.ms = t
          }, n.prototype.setMax = function (t) {
              this.max = t
          }, n.prototype.setJitter = function (t) {
              this.jitter = t
          }
      }])
  });
  //# sourceMappingURL=socket.io.js.map