text: 'use strict';
  
  function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
  
  var path = require('path');
  var path__default = _interopDefault(path);
  var fs = require('fs');
  var http = require('http');
  var http__default = _interopDefault(http);
  var child_process = require('child_process');
  require('net');
  var __chunk_1 = require('./chunk.js');
  var __chunk_5 = require('./chunk5.js');
  require('html-minifier');
  var __chunk_6 = require('./chunk6.js');
  var Url = require('url');
  var Url__default = _interopDefault(Url);
  var Stream = _interopDefault(require('stream'));
  var https = _interopDefault(require('https'));
  var zlib = _interopDefault(require('zlib'));
  var httpLinkHeader = require('http-link-header');
  
  // Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
  
  // fix for "Readable" isn't a named export issue
  const Readable = Stream.Readable;
  
  const BUFFER = Symbol('buffer');
  const TYPE = Symbol('type');
  
  class Blob {
  	constructor() {
  		this[TYPE] = '';
  
  		const blobParts = arguments[0];
  		const options = arguments[1];
  
  		const buffers = [];
  		let size = 0;
  
  		if (blobParts) {
  			const a = blobParts;
  			const length = Number(a.length);
  			for (let i = 0; i < length; i++) {
  				const element = a[i];
  				let buffer;
  				if (element instanceof Buffer) {
  					buffer = element;
  				} else if (ArrayBuffer.isView(element)) {
  					buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
  				} else if (element instanceof ArrayBuffer) {
  					buffer = Buffer.from(element);
  				} else if (element instanceof Blob) {
  					buffer = element[BUFFER];
  				} else {
  					buffer = Buffer.from(typeof element === 'string' ? element : String(element));
  				}
  				size += buffer.length;
  				buffers.push(buffer);
  			}
  		}
  
  		this[BUFFER] = Buffer.concat(buffers);
  
  		let type = options && options.type !== undefined && String(options.type).toLowerCase();
  		if (type && !/[^\u0020-\u007E]/.test(type)) {
  			this[TYPE] = type;
  		}
  	}
  	get size() {
  		return this[BUFFER].length;
  	}
  	get type() {
  		return this[TYPE];
  	}
  	text() {
  		return Promise.resolve(this[BUFFER].toString());
  	}
  	arrayBuffer() {
  		const buf = this[BUFFER];
  		const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
  		return Promise.resolve(ab);
  	}
  	stream() {
  		const readable = new Readable();
  		readable._read = function () {};
  		readable.push(this[BUFFER]);
  		readable.push(null);
  		return readable;
  	}
  	toString() {
  		return '[object Blob]';
  	}
  	slice() {
  		const size = this.size;
  
  		const start = arguments[0];
  		const end = arguments[1];
  		let relativeStart, relativeEnd;
  		if (start === undefined) {
  			relativeStart = 0;
  		} else if (start < 0) {
  			relativeStart = Math.max(size + start, 0);
  		} else {
  			relativeStart = Math.min(start, size);
  		}
  		if (end === undefined) {
  			relativeEnd = size;
  		} else if (end < 0) {
  			relativeEnd = Math.max(size + end, 0);
  		} else {
  			relativeEnd = Math.min(end, size);
  		}
  		const span = Math.max(relativeEnd - relativeStart, 0);
  
  		const buffer = this[BUFFER];
  		const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
  		const blob = new Blob([], { type: arguments[2] });
  		blob[BUFFER] = slicedBuffer;
  		return blob;
  	}
  }
  
  Object.defineProperties(Blob.prototype, {
  	size: { enumerable: true },
  	type: { enumerable: true },
  	slice: { enumerable: true }
  });
  
  Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
  	value: 'Blob',
  	writable: false,
  	enumerable: false,
  	configurable: true
  });
  
  /**
   * fetch-error.js
   *
   * FetchError interface for operational errors
   */
  
  /**
   * Create FetchError instance
   *
   * @param   String      message      Error message for human
   * @param   String      type         Error type for machine
   * @param   String      systemError  For Node.js system error
   * @return  FetchError
   */
  function FetchError(message, type, systemError) {
    Error.call(this, message);
  
    this.message = message;
    this.type = type;
  
    // when err.type is `system`, err.code contains system error code
    if (systemError) {
      this.code = this.errno = systemError.code;
    }
  
    // hide custom error implementation details from end-users
    Error.captureStackTrace(this, this.constructor);
  }
  
  FetchError.prototype = Object.create(Error.prototype);
  FetchError.prototype.constructor = FetchError;
  FetchError.prototype.name = 'FetchError';
  
  let convert;
  try {
  	convert = require('encoding').convert;
  } catch (e) {}
  
  const INTERNALS = Symbol('Body internals');
  
  // fix an issue where "PassThrough" isn't a named export for node <10
  const PassThrough = Stream.PassThrough;
  
  /**
   * Body mixin
   *
   * Ref: https://fetch.spec.whatwg.org/#body
   *
   * @param   Stream  body  Readable stream
   * @param   Object  opts  Response options
   * @return  Void
   */
  function Body(body) {
  	var _this = this;
  
  	var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
  	    _ref$size = _ref.size;
  
  	let size = _ref$size === undefined ? 0 : _ref$size;
  	var _ref$timeout = _ref.timeout;
  	let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
  
  	if (body == null) {
  		// body is undefined or null
  		body = null;
  	} else if (isURLSearchParams(body)) {
  		// body is a URLSearchParams
  		body = Buffer.from(body.toString());
  	} else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
  		// body is ArrayBuffer
  		body = Buffer.from(body);
  	} else if (ArrayBuffer.isView(body)) {
  		// body is ArrayBufferView
  		body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
  	} else if (body instanceof Stream) ; else {
  		// none of the above
  		// coerce to string then buffer
  		body = Buffer.from(String(body));
  	}
  	this[INTERNALS] = {
  		body,
  		disturbed: false,
  		error: null
  	};
  	this.size = size;
  	this.timeout = timeout;
  
  	if (body instanceof Stream) {
  		body.on('error', function (err) {
  			const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
  			_this[INTERNALS].error = error;
  		});
  	}
  }
  
  Body.prototype = {
  	get body() {
  		return this[INTERNALS].body;
  	},
  
  	get bodyUsed() {
  		return this[INTERNALS].disturbed;
  	},
  
  	/**
    * Decode response as ArrayBuffer
    *
    * @return  Promise
    */
  	arrayBuffer() {
  		return consumeBody.call(this).then(function (buf) {
  			return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
  		});
  	},
  
  	/**
    * Return raw response as Blob
    *
    * @return Promise
    */
  	blob() {
  		let ct = this.headers && this.headers.get('content-type') || '';
  		return consumeBody.call(this).then(function (buf) {
  			return Object.assign(
  			// Prevent copying
  			new Blob([], {
  				type: ct.toLowerCase()
  			}), {
  				[BUFFER]: buf
  			});
  		});
  	},
  
  	/**
    * Decode response as json
    *
    * @return  Promise
    */
  	json() {
  		var _this2 = this;
  
  		return consumeBody.call(this).then(function (buffer) {
  			try {
  				return JSON.parse(buffer.toString());
  			} catch (err) {
  				return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
  			}
  		});
  	},
  
  	/**
    * Decode response as text
    *
    * @return  Promise
    */
  	text() {
  		return consumeBody.call(this).then(function (buffer) {
  			return buffer.toString();
  		});
  	},
  
  	/**
    * Decode response as buffer (non-spec api)
    *
    * @return  Promise
    */
  	buffer() {
  		return consumeBody.call(this);
  	},
  
  	/**
    * Decode response as text, while automatically detecting the encoding and
    * trying to decode to UTF-8 (non-spec api)
    *
    * @return  Promise
    */
  	textConverted() {
  		var _this3 = this;
  
  		return consumeBody.call(this).then(function (buffer) {
  			return convertBody(buffer, _this3.headers);
  		});
  	}
  };
  
  // In browsers, all properties are enumerable.
  Object.defineProperties(Body.prototype, {
  	body: { enumerable: true },
  	bodyUsed: { enumerable: true },
  	arrayBuffer: { enumerable: true },
  	blob: { enumerable: true },
  	json: { enumerable: true },
  	text: { enumerable: true }
  });
  
  Body.mixIn = function (proto) {
  	for (const name of Object.getOwnPropertyNames(Body.prototype)) {
  		// istanbul ignore else: future proof
  		if (!(name in proto)) {
  			const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
  			Object.defineProperty(proto, name, desc);
  		}
  	}
  };
  
  /**
   * Consume and convert an entire Body to a Buffer.
   *
   * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
   *
   * @return  Promise
   */
  function consumeBody() {
  	var _this4 = this;
  
  	if (this[INTERNALS].disturbed) {
  		return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
  	}
  
  	this[INTERNALS].disturbed = true;
  
  	if (this[INTERNALS].error) {
  		return Body.Promise.reject(this[INTERNALS].error);
  	}
  
  	let body = this.body;
  
  	// body is null
  	if (body === null) {
  		return Body.Promise.resolve(Buffer.alloc(0));
  	}
  
  	// body is blob
  	if (isBlob(body)) {
  		body = body.stream();
  	}
  
  	// body is buffer
  	if (Buffer.isBuffer(body)) {
  		return Body.Promise.resolve(body);
  	}
  
  	// istanbul ignore if: should never happen
  	if (!(body instanceof Stream)) {
  		return Body.Promise.resolve(Buffer.alloc(0));
  	}
  
  	// body is stream
  	// get ready to actually consume the body
  	let accum = [];
  	let accumBytes = 0;
  	let abort = false;
  
  	return new Body.Promise(function (resolve, reject) {
  		let resTimeout;
  
  		// allow timeout on slow response body
  		if (_this4.timeout) {
  			resTimeout = setTimeout(function () {
  				abort = true;
  				reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
  			}, _this4.timeout);
  		}
  
  		// handle stream errors
  		body.on('error', function (err) {
  			if (err.name === 'AbortError') {
  				// if the request was aborted, reject with this Error
  				abort = true;
  				reject(err);
  			} else {
  				// other errors, such as incorrect content-encoding
  				reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
  			}
  		});
  
  		body.on('data', function (chunk) {
  			if (abort || chunk === null) {
  				return;
  			}
  
  			if (_this4.size && accumBytes + chunk.length > _this4.size) {
  				abort = true;
  				reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
  				return;
  			}
  
  			accumBytes += chunk.length;
  			accum.push(chunk);
  		});
  
  		body.on('end', function () {
  			if (abort) {
  				return;
  			}
  
  			clearTimeout(resTimeout);
  
  			try {
  				resolve(Buffer.concat(accum, accumBytes));
  			} catch (err) {
  				// handle streams that have accumulated too much data (issue #414)
  				reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
  			}
  		});
  	});
  }
  
  /**
   * Detect buffer encoding and convert to target encoding
   * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
   *
   * @param   Buffer  buffer    Incoming buffer
   * @param   String  encoding  Target encoding
   * @return  String
   */
  function convertBody(buffer, headers) {
  	if (typeof convert !== 'function') {
  		throw new Error('The package `encoding` must be installed to use the textConverted() function');
  	}
  
  	const ct = headers.get('content-type');
  	let charset = 'utf-8';
  	let res, str;
  
  	// header
  	if (ct) {
  		res = /charset=([^;]*)/i.exec(ct);
  	}
  
  	// no charset in content type, peek at response body for at most 1024 bytes
  	str = buffer.slice(0, 1024).toString();
  
  	// html5
  	if (!res && str) {
  		res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
  	}
  
  	// html4
  	if (!res && str) {
  		res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
  
  		if (res) {
  			res = /charset=(.*)/i.exec(res.pop());
  		}
  	}
  
  	// xml
  	if (!res && str) {
  		res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
  	}
  
  	// found charset
  	if (res) {
  		charset = res.pop();
  
  		// prevent decode issues when sites use incorrect encoding
  		// ref: https://hsivonen.fi/encoding-menu/
  		if (charset === 'gb2312' || charset === 'gbk') {
  			charset = 'gb18030';
  		}
  	}
  
  	// turn raw buffers into a single utf-8 buffer
  	return convert(buffer, 'UTF-8', charset).toString();
  }
  
  /**
   * Detect a URLSearchParams object
   * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
   *
   * @param   Object  obj     Object to detect by type or brand
   * @return  String
   */
  function isURLSearchParams(obj) {
  	// Duck-typing as a necessary condition.
  	if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
  		return false;
  	}
  
  	// Brand-checking and more duck-typing as optional condition.
  	return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
  }
  
  /**
   * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
   * @param  {*} obj
   * @return {boolean}
   */
  function isBlob(obj) {
  	return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
  }
  
  /**
   * Clone body given Res/Req instance
   *
   * @param   Mixed  instance  Response or Request instance
   * @return  Mixed
   */
  function clone(instance) {
  	let p1, p2;
  	let body = instance.body;
  
  	// don't allow cloning a used body
  	if (instance.bodyUsed) {
  		throw new Error('cannot clone body after it is used');
  	}
  
  	// check that body is a stream and not form-data object
  	// note: we can't clone the form-data object without having it as a dependency
  	if (body instanceof Stream && typeof body.getBoundary !== 'function') {
  		// tee instance body
  		p1 = new PassThrough();
  		p2 = new PassThrough();
  		body.pipe(p1);
  		body.pipe(p2);
  		// set instance body to teed body and return the other teed body
  		instance[INTERNALS].body = p1;
  		body = p2;
  	}
  
  	return body;
  }
  
  /**
   * Performs the operation "extract a `Content-Type` value from |object|" as
   * specified in the specification:
   * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
   *
   * This function assumes that instance.body is present.
   *
   * @param   Mixed  instance  Response or Request instance
   */
  function extractContentType(body) {
  	// istanbul ignore if: Currently, because of a guard in Request, body
  	// can never be null. Included here for completeness.
  	if (body === null) {
  		// body is null
  		return null;
  	} else if (typeof body === 'string') {
  		// body is string
  		return 'text/plain;charset=UTF-8';
  	} else if (isURLSearchParams(body)) {
  		// body is a URLSearchParams
  		return 'application/x-www-form-urlencoded;charset=UTF-8';
  	} else if (isBlob(body)) {
  		// body is blob
  		return body.type || null;
  	} else if (Buffer.isBuffer(body)) {
  		// body is buffer
  		return null;
  	} else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
  		// body is ArrayBuffer
  		return null;
  	} else if (ArrayBuffer.isView(body)) {
  		// body is ArrayBufferView
  		return null;
  	} else if (typeof body.getBoundary === 'function') {
  		// detect form data input from form-data module
  		return `multipart/form-data;boundary=${body.getBoundary()}`;
  	} else if (body instanceof Stream) {
  		// body is stream
  		// can't really do much about this
  		return null;
  	} else {
  		// Body constructor defaults other things to string
  		return 'text/plain;charset=UTF-8';
  	}
  }
  
  /**
   * The Fetch Standard treats this as if "total bytes" is a property on the body.
   * For us, we have to explicitly get it with a function.
   *
   * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
   *
   * @param   Body    instance   Instance of Body
   * @return  Number?            Number of bytes, or null if not possible
   */
  function getTotalBytes(instance) {
  	const body = instance.body;
  
  	// istanbul ignore if: included for completion
  
  	if (body === null) {
  		// body is null
  		return 0;
  	} else if (isBlob(body)) {
  		return body.size;
  	} else if (Buffer.isBuffer(body)) {
  		// body is buffer
  		return body.length;
  	} else if (body && typeof body.getLengthSync === 'function') {
  		// detect form data input from form-data module
  		if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
  		body.hasKnownLength && body.hasKnownLength()) {
  			// 2.x
  			return body.getLengthSync();
  		}
  		return null;
  	} else {
  		// body is stream
  		return instance.size || null;
  	}
  }
  
  /**
   * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
   *
   * @param   Body    instance   Instance of Body
   * @return  Void
   */
  function writeToStream(dest, instance) {
  	const body = instance.body;
  
  
  	if (body === null) {
  		// body is null
  		dest.end();
  	} else if (isBlob(body)) {
  		body.stream().pipe(dest);
  	} else if (Buffer.isBuffer(body)) {
  		// body is buffer
  		dest.write(body);
  		dest.end();
  	} else {
  		// body is stream
  		body.pipe(dest);
  	}
  }
  
  // expose Promise
  Body.Promise = global.Promise;
  
  /**
   * headers.js
   *
   * Headers class offers convenient helpers
   */
  
  const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
  const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
  
  function validateName(name) {
  	name = `${name}`;
  	if (invalidTokenRegex.test(name) || name === '') {
  		throw new TypeError(`${name} is not a legal HTTP header name`);
  	}
  }
  
  function validateValue(value) {
  	value = `${value}`;
  	if (invalidHeaderCharRegex.test(value)) {
  		throw new TypeError(`${value} is not a legal HTTP header value`);
  	}
  }
  
  /**
   * Find the key in the map object given a header name.
   *
   * Returns undefined if not found.
   *
   * @param   String  name  Header name
   * @return  String|Undefined
   */
  function find(map, name) {
  	name = name.toLowerCase();
  	for (const key in map) {
  		if (key.toLowerCase() === name) {
  			return key;
  		}
  	}
  	return undefined;
  }
  
  const MAP = Symbol('map');
  class Headers {
  	/**
    * Headers class
    *
    * @param   Object  headers  Response headers
    * @return  Void
    */
  	constructor() {
  		let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
  
  		this[MAP] = Object.create(null);
  
  		if (init instanceof Headers) {
  			const rawHeaders = init.raw();
  			const headerNames = Object.keys(rawHeaders);
  
  			for (const headerName of headerNames) {
  				for (const value of rawHeaders[headerName]) {
  					this.append(headerName, value);
  				}
  			}
  
  			return;
  		}
  
  		// We don't worry about converting prop to ByteString here as append()
  		// will handle it.
  		if (init == null) ; else if (typeof init === 'object') {
  			const method = init[Symbol.iterator];
  			if (method != null) {
  				if (typeof method !== 'function') {
  					throw new TypeError('Header pairs must be iterable');
  				}
  
  				// sequence<sequence<ByteString>>
  				// Note: per spec we have to first exhaust the lists then process them
  				const pairs = [];
  				for (const pair of init) {
  					if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
  						throw new TypeError('Each header pair must be iterable');
  					}
  					pairs.push(Array.from(pair));
  				}
  
  				for (const pair of pairs) {
  					if (pair.length !== 2) {
  						throw new TypeError('Each header pair must be a name/value tuple');
  					}
  					this.append(pair[0], pair[1]);
  				}
  			} else {
  				// record<ByteString, ByteString>
  				for (const key of Object.keys(init)) {
  					const value = init[key];
  					this.append(key, value);
  				}
  			}
  		} else {
  			throw new TypeError('Provided initializer must be an object');
  		}
  	}
  
  	/**
    * Return combined header value given name
    *
    * @param   String  name  Header name
    * @return  Mixed
    */
  	get(name) {
  		name = `${name}`;
  		validateName(name);
  		const key = find(this[MAP], name);
  		if (key === undefined) {
  			return null;
  		}
  
  		return this[MAP][key].join(', ');
  	}
  
  	/**
    * Iterate over all headers
    *
    * @param   Function  callback  Executed for each item with parameters (value, name, thisArg)
    * @param   Boolean   thisArg   `this` context for callback function
    * @return  Void
    */
  	forEach(callback) {
  		let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
  
  		let pairs = getHeaders(this);
  		let i = 0;
  		while (i < pairs.length) {
  			var _pairs$i = pairs[i];
  			const name = _pairs$i[0],
  			      value = _pairs$i[1];
  
  			callback.call(thisArg, value, name, this);
  			pairs = getHeaders(this);
  			i++;
  		}
  	}
  
  	/**
    * Overwrite header values given name
    *
    * @param   String  name   Header name
    * @param   String  value  Header value
    * @return  Void
    */
  	set(name, value) {
  		name = `${name}`;
  		value = `${value}`;
  		validateName(name);
  		validateValue(value);
  		const key = find(this[MAP], name);
  		this[MAP][key !== undefined ? key : name] = [value];
  	}
  
  	/**
    * Append a value onto existing header
    *
    * @param   String  name   Header name
    * @param   String  value  Header value
    * @return  Void
    */
  	append(name, value) {
  		name = `${name}`;
  		value = `${value}`;
  		validateName(name);
  		validateValue(value);
  		const key = find(this[MAP], name);
  		if (key !== undefined) {
  			this[MAP][key].push(value);
  		} else {
  			this[MAP][name] = [value];
  		}
  	}
  
  	/**
    * Check for header name existence
    *
    * @param   String   name  Header name
    * @return  Boolean
    */
  	has(name) {
  		name = `${name}`;
  		validateName(name);
  		return find(this[MAP], name) !== undefined;
  	}
  
  	/**
    * Delete all header values given name
    *
    * @param   String  name  Header name
    * @return  Void
    */
  	delete(name) {
  		name = `${name}`;
  		validateName(name);
  		const key = find(this[MAP], name);
  		if (key !== undefined) {
  			delete this[MAP][key];
  		}
  	}
  
  	/**
    * Return raw headers (non-spec api)
    *
    * @return  Object
    */
  	raw() {
  		return this[MAP];
  	}
  
  	/**
    * Get an iterator on keys.
    *
    * @return  Iterator
    */
  	keys() {
  		return createHeadersIterator(this, 'key');
  	}
  
  	/**
    * Get an iterator on values.
    *
    * @return  Iterator
    */
  	values() {
  		return createHeadersIterator(this, 'value');
  	}
  
  	/**
    * Get an iterator on entries.
    *
    * This is the default iterator of the Headers object.
    *
    * @return  Iterator
    */
  	[Symbol.iterator]() {
  		return createHeadersIterator(this, 'key+value');
  	}
  }
  Headers.prototype.entries = Headers.prototype[Symbol.iterator];
  
  Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
  	value: 'Headers',
  	writable: false,
  	enumerable: false,
  	configurable: true
  });
  
  Object.defineProperties(Headers.prototype, {
  	get: { enumerable: true },
  	forEach: { enumerable: true },
  	set: { enumerable: true },
  	append: { enumerable: true },
  	has: { enumerable: true },
  	delete: { enumerable: true },
  	keys: { enumerable: true },
  	values: { enumerable: true },
  	entries: { enumerable: true }
  });
  
  function getHeaders(headers) {
  	let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
  
  	const keys = Object.keys(headers[MAP]).sort();
  	return keys.map(kind === 'key' ? function (k) {
  		return k.toLowerCase();
  	} : kind === 'value' ? function (k) {
  		return headers[MAP][k].join(', ');
  	} : function (k) {
  		return [k.toLowerCase(), headers[MAP][k].join(', ')];
  	});
  }
  
  const INTERNAL = Symbol('internal');
  
  function createHeadersIterator(target, kind) {
  	const iterator = Object.create(HeadersIteratorPrototype);
  	iterator[INTERNAL] = {
  		target,
  		kind,
  		index: 0
  	};
  	return iterator;
  }
  
  const HeadersIteratorPrototype = Object.setPrototypeOf({
  	next() {
  		// istanbul ignore if
  		if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
  			throw new TypeError('Value of `this` is not a HeadersIterator');
  		}
  
  		var _INTERNAL = this[INTERNAL];
  		const target = _INTERNAL.target,
  		      kind = _INTERNAL.kind,
  		      index = _INTERNAL.index;
  
  		const values = getHeaders(target, kind);
  		const len = values.length;
  		if (index >= len) {
  			return {
  				value: undefined,
  				done: true
  			};
  		}
  
  		this[INTERNAL].index = index + 1;
  
  		return {
  			value: values[index],
  			done: false
  		};
  	}
  }, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
  
  Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
  	value: 'HeadersIterator',
  	writable: false,
  	enumerable: false,
  	configurable: true
  });
  
  /**
   * Export the Headers object in a form that Node.js can consume.
   *
   * @param   Headers  headers
   * @return  Object
   */
  function exportNodeCompatibleHeaders(headers) {
  	const obj = Object.assign({ __proto__: null }, headers[MAP]);
  
  	// http.request() only supports string as Host header. This hack makes
  	// specifying custom Host header possible.
  	const hostHeaderKey = find(headers[MAP], 'Host');
  	if (hostHeaderKey !== undefined) {
  		obj[hostHeaderKey] = obj[hostHeaderKey][0];
  	}
  
  	return obj;
  }
  
  /**
   * Create a Headers object from an object of headers, ignoring those that do
   * not conform to HTTP grammar productions.
   *
   * @param   Object  obj  Object of headers
   * @return  Headers
   */
  function createHeadersLenient(obj) {
  	const headers = new Headers();
  	for (const name of Object.keys(obj)) {
  		if (invalidTokenRegex.test(name)) {
  			continue;
  		}
  		if (Array.isArray(obj[name])) {
  			for (const val of obj[name]) {
  				if (invalidHeaderCharRegex.test(val)) {
  					continue;
  				}
  				if (headers[MAP][name] === undefined) {
  					headers[MAP][name] = [val];
  				} else {
  					headers[MAP][name].push(val);
  				}
  			}
  		} else if (!invalidHeaderCharRegex.test(obj[name])) {
  			headers[MAP][name] = [obj[name]];
  		}
  	}
  	return headers;
  }
  
  const INTERNALS$1 = Symbol('Response internals');
  
  // fix an issue where "STATUS_CODES" aren't a named export for node <10
  const STATUS_CODES = http__default.STATUS_CODES;
  
  /**
   * Response class
   *
   * @param   Stream  body  Readable stream
   * @param   Object  opts  Response options
   * @return  Void
   */
  class Response {
  	constructor() {
  		let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
  		let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  
  		Body.call(this, body, opts);
  
  		const status = opts.status || 200;
  		const headers = new Headers(opts.headers);
  
  		if (body != null && !headers.has('Content-Type')) {
  			const contentType = extractContentType(body);
  			if (contentType) {
  				headers.append('Content-Type', contentType);
  			}
  		}
  
  		this[INTERNALS$1] = {
  			url: opts.url,
  			status,
  			statusText: opts.statusText || STATUS_CODES[status],
  			headers,
  			counter: opts.counter
  		};
  	}
  
  	get url() {
  		return this[INTERNALS$1].url;
  	}
  
  	get status() {
  		return this[INTERNALS$1].status;
  	}
  
  	/**
    * Convenience property representing if the request ended normally
    */
  	get ok() {
  		return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
  	}
  
  	get redirected() {
  		return this[INTERNALS$1].counter > 0;
  	}
  
  	get statusText() {
  		return this[INTERNALS$1].statusText;
  	}
  
  	get headers() {
  		return this[INTERNALS$1].headers;
  	}
  
  	/**
    * Clone this response
    *
    * @return  Response
    */
  	clone() {
  		return new Response(clone(this), {
  			url: this.url,
  			status: this.status,
  			statusText: this.statusText,
  			headers: this.headers,
  			ok: this.ok,
  			redirected: this.redirected
  		});
  	}
  }
  
  Body.mixIn(Response.prototype);
  
  Object.defineProperties(Response.prototype, {
  	url: { enumerable: true },
  	status: { enumerable: true },
  	ok: { enumerable: true },
  	redirected: { enumerable: true },
  	statusText: { enumerable: true },
  	headers: { enumerable: true },
  	clone: { enumerable: true }
  });
  
  Object.defineProperty(Response.prototype, Symbol.toStringTag, {
  	value: 'Response',
  	writable: false,
  	enumerable: false,
  	configurable: true
  });
  
  const INTERNALS$2 = Symbol('Request internals');
  
  // fix an issue where "format", "parse" aren't a named export for node <10
  const parse_url = Url__default.parse;
  const format_url = Url__default.format;
  
  const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
  
  /**
   * Check if a value is an instance of Request.
   *
   * @param   Mixed   input
   * @return  Boolean
   */
  function isRequest(input) {
  	return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
  }
  
  function isAbortSignal(signal) {
  	const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
  	return !!(proto && proto.constructor.name === 'AbortSignal');
  }
  
  /**
   * Request class
   *
   * @param   Mixed   input  Url or Request instance
   * @param   Object  init   Custom options
   * @return  Void
   */
  class Request {
  	constructor(input) {
  		let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  
  		let parsedURL;
  
  		// normalize input
  		if (!isRequest(input)) {
  			if (input && input.href) {
  				// in order to support Node.js' Url objects; though WHATWG's URL objects
  				// will fall into this branch also (since their `toString()` will return
  				// `href` property anyway)
  				parsedURL = parse_url(input.href);
  			} else {
  				// coerce input to a string before attempting to parse
  				parsedURL = parse_url(`${input}`);
  			}
  			input = {};
  		} else {
  			parsedURL = parse_url(input.url);
  		}
  
  		let method = init.method || input.method || 'GET';
  		method = method.toUpperCase();
  
  		if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
  			throw new TypeError('Request with GET/HEAD method cannot have body');
  		}
  
  		let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
  
  		Body.call(this, inputBody, {
  			timeout: init.timeout || input.timeout || 0,
  			size: init.size || input.size || 0
  		});
  
  		const headers = new Headers(init.headers || input.headers || {});
  
  		if (inputBody != null && !headers.has('Content-Type')) {
  			const contentType = extractContentType(inputBody);
  			if (contentType) {
  				headers.append('Content-Type', contentType);
  			}
  		}
  
  		let signal = isRequest(input) ? input.signal : null;
  		if ('signal' in init) signal = init.signal;
  
  		if (signal != null && !isAbortSignal(signal)) {
  			throw new TypeError('Expected signal to be an instanceof AbortSignal');
  		}
  
  		this[INTERNALS$2] = {
  			method,
  			redirect: init.redirect || input.redirect || 'follow',
  			headers,
  			parsedURL,
  			signal
  		};
  
  		// node-fetch-only options
  		this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
  		this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
  		this.counter = init.counter || input.counter || 0;
  		this.agent = init.agent || input.agent;
  	}
  
  	get method() {
  		return this[INTERNALS$2].method;
  	}
  
  	get url() {
  		return format_url(this[INTERNALS$2].parsedURL);
  	}
  
  	get headers() {
  		return this[INTERNALS$2].headers;
  	}
  
  	get redirect() {
  		return this[INTERNALS$2].redirect;
  	}
  
  	get signal() {
  		return this[INTERNALS$2].signal;
  	}
  
  	/**
    * Clone this request
    *
    * @return  Request
    */
  	clone() {
  		return new Request(this);
  	}
  }
  
  Body.mixIn(Request.prototype);
  
  Object.defineProperty(Request.prototype, Symbol.toStringTag, {
  	value: 'Request',
  	writable: false,
  	enumerable: false,
  	configurable: true
  });
  
  Object.defineProperties(Request.prototype, {
  	method: { enumerable: true },
  	url: { enumerable: true },
  	headers: { enumerable: true },
  	redirect: { enumerable: true },
  	clone: { enumerable: true },
  	signal: { enumerable: true }
  });
  
  /**
   * Convert a Request to Node.js http request options.
   *
   * @param   Request  A Request instance
   * @return  Object   The options object to be passed to http.request
   */
  function getNodeRequestOptions(request) {
  	const parsedURL = request[INTERNALS$2].parsedURL;
  	const headers = new Headers(request[INTERNALS$2].headers);
  
  	// fetch step 1.3
  	if (!headers.has('Accept')) {
  		headers.set('Accept', '*/*');
  	}
  
  	// Basic fetch
  	if (!parsedURL.protocol || !parsedURL.hostname) {
  		throw new TypeError('Only absolute URLs are supported');
  	}
  
  	if (!/^https?:$/.test(parsedURL.protocol)) {
  		throw new TypeError('Only HTTP(S) protocols are supported');
  	}
  
  	if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
  		throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
  	}
  
  	// HTTP-network-or-cache fetch steps 2.4-2.7
  	let contentLengthValue = null;
  	if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
  		contentLengthValue = '0';
  	}
  	if (request.body != null) {
  		const totalBytes = getTotalBytes(request);
  		if (typeof totalBytes === 'number') {
  			contentLengthValue = String(totalBytes);
  		}
  	}
  	if (contentLengthValue) {
  		headers.set('Content-Length', contentLengthValue);
  	}
  
  	// HTTP-network-or-cache fetch step 2.11
  	if (!headers.has('User-Agent')) {
  		headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
  	}
  
  	// HTTP-network-or-cache fetch step 2.15
  	if (request.compress && !headers.has('Accept-Encoding')) {
  		headers.set('Accept-Encoding', 'gzip,deflate');
  	}
  
  	if (!headers.has('Connection') && !request.agent) {
  		headers.set('Connection', 'close');
  	}
  
  	// HTTP-network fetch step 4.2
  	// chunked encoding is handled by Node.js
  
  	return Object.assign({}, parsedURL, {
  		method: request.method,
  		headers: exportNodeCompatibleHeaders(headers),
  		agent: request.agent
  	});
  }
  
  /**
   * abort-error.js
   *
   * AbortError interface for cancelled requests
   */
  
  /**
   * Create AbortError instance
   *
   * @param   String      message      Error message for human
   * @return  AbortError
   */
  function AbortError(message) {
    Error.call(this, message);
  
    this.type = 'aborted';
    this.message = message;
  
    // hide custom error implementation details from end-users
    Error.captureStackTrace(this, this.constructor);
  }
  
  AbortError.prototype = Object.create(Error.prototype);
  AbortError.prototype.constructor = AbortError;
  AbortError.prototype.name = 'AbortError';
  
  // fix an issue where "PassThrough", "resolve" aren't a named export for node <10
  const PassThrough$1 = Stream.PassThrough;
  const resolve_url = Url__default.resolve;
  
  /**
   * Fetch function
   *
   * @param   Mixed    url   Absolute url or Request instance
   * @param   Object   opts  Fetch options
   * @return  Promise
   */
  function fetch(url, opts) {
  
  	// allow custom promise
  	if (!fetch.Promise) {
  		throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
  	}
  
  	Body.Promise = fetch.Promise;
  
  	// wrap http.request into fetch
  	return new fetch.Promise(function (resolve, reject) {
  		// build request object
  		const request = new Request(url, opts);
  		const options = getNodeRequestOptions(request);
  
  		const send = (options.protocol === 'https:' ? https : http__default).request;
  		const signal = request.signal;
  
  		let response = null;
  
  		const abort = function abort() {
  			let error = new AbortError('The user aborted a request.');
  			reject(error);
  			if (request.body && request.body instanceof Stream.Readable) {
  				request.body.destroy(error);
  			}
  			if (!response || !response.body) return;
  			response.body.emit('error', error);
  		};
  
  		if (signal && signal.aborted) {
  			abort();
  			return;
  		}
  
  		const abortAndFinalize = function abortAndFinalize() {
  			abort();
  			finalize();
  		};
  
  		// send request
  		const req = send(options);
  		let reqTimeout;
  
  		if (signal) {
  			signal.addEventListener('abort', abortAndFinalize);
  		}
  
  		function finalize() {
  			req.abort();
  			if (signal) signal.removeEventListener('abort', abortAndFinalize);
  			clearTimeout(reqTimeout);
  		}
  
  		if (request.timeout) {
  			req.once('socket', function (socket) {
  				reqTimeout = setTimeout(function () {
  					reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
  					finalize();
  				}, request.timeout);
  			});
  		}
  
  		req.on('error', function (err) {
  			reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
  			finalize();
  		});
  
  		req.on('response', function (res) {
  			clearTimeout(reqTimeout);
  
  			const headers = createHeadersLenient(res.headers);
  
  			// HTTP fetch step 5
  			if (fetch.isRedirect(res.statusCode)) {
  				// HTTP fetch step 5.2
  				const location = headers.get('Location');
  
  				// HTTP fetch step 5.3
  				const locationURL = location === null ? null : resolve_url(request.url, location);
  
  				// HTTP fetch step 5.5
  				switch (request.redirect) {
  					case 'error':
  						reject(new FetchError(`redirect mode is set to error: ${request.url}`, 'no-redirect'));
  						finalize();
  						return;
  					case 'manual':
  						// node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
  						if (locationURL !== null) {
  							// handle corrupted header
  							try {
  								headers.set('Location', locationURL);
  							} catch (err) {
  								// istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
  								reject(err);
  							}
  						}
  						break;
  					case 'follow':
  						// HTTP-redirect fetch step 2
  						if (locationURL === null) {
  							break;
  						}
  
  						// HTTP-redirect fetch step 5
  						if (request.counter >= request.follow) {
  							reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
  							finalize();
  							return;
  						}
  
  						// HTTP-redirect fetch step 6 (counter increment)
  						// Create a new Request object.
  						const requestOpts = {
  							headers: new Headers(request.headers),
  							follow: request.follow,
  							counter: request.counter + 1,
  							agent: request.agent,
  							compress: request.compress,
  							method: request.method,
  							body: request.body,
  							signal: request.signal,
  							timeout: request.timeout
  						};
  
  						// HTTP-redirect fetch step 9
  						if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
  							reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
  							finalize();
  							return;
  						}
  
  						// HTTP-redirect fetch step 11
  						if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
  							requestOpts.method = 'GET';
  							requestOpts.body = undefined;
  							requestOpts.headers.delete('content-length');
  						}
  
  						// HTTP-redirect fetch step 15
  						resolve(fetch(new Request(locationURL, requestOpts)));
  						finalize();
  						return;
  				}
  			}
  
  			// prepare response
  			res.once('end', function () {
  				if (signal) signal.removeEventListener('abort', abortAndFinalize);
  			});
  			let body = res.pipe(new PassThrough$1());
  
  			const response_options = {
  				url: request.url,
  				status: res.statusCode,
  				statusText: res.statusMessage,
  				headers: headers,
  				size: request.size,
  				timeout: request.timeout,
  				counter: request.counter
  			};
  
  			// HTTP-network fetch step 12.1.1.3
  			const codings = headers.get('Content-Encoding');
  
  			// HTTP-network fetch step 12.1.1.4: handle content codings
  
  			// in following scenarios we ignore compression support
  			// 1. compression support is disabled
  			// 2. HEAD request
  			// 3. no Content-Encoding header
  			// 4. no content response (204)
  			// 5. content not modified response (304)
  			if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
  				response = new Response(body, response_options);
  				resolve(response);
  				return;
  			}
  
  			// For Node v6+
  			// Be less strict when decoding compressed responses, since sometimes
  			// servers send slightly invalid responses that are still accepted
  			// by common browsers.
  			// Always using Z_SYNC_FLUSH is what cURL does.
  			const zlibOptions = {
  				flush: zlib.Z_SYNC_FLUSH,
  				finishFlush: zlib.Z_SYNC_FLUSH
  			};
  
  			// for gzip
  			if (codings == 'gzip' || codings == 'x-gzip') {
  				body = body.pipe(zlib.createGunzip(zlibOptions));
  				response = new Response(body, response_options);
  				resolve(response);
  				return;
  			}
  
  			// for deflate
  			if (codings == 'deflate' || codings == 'x-deflate') {
  				// handle the infamous raw deflate response from old servers
  				// a hack for old IIS and Apache servers
  				const raw = res.pipe(new PassThrough$1());
  				raw.once('data', function (chunk) {
  					// see http://stackoverflow.com/questions/37519828
  					if ((chunk[0] & 0x0F) === 0x08) {
  						body = body.pipe(zlib.createInflate());
  					} else {
  						body = body.pipe(zlib.createInflateRaw());
  					}
  					response = new Response(body, response_options);
  					resolve(response);
  				});
  				return;
  			}
  
  			// for br
  			if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
  				body = body.pipe(zlib.createBrotliDecompress());
  				response = new Response(body, response_options);
  				resolve(response);
  				return;
  			}
  
  			// otherwise, use response as-is
  			response = new Response(body, response_options);
  			resolve(response);
  		});
  
  		writeToStream(req, request);
  	});
  }
  /**
   * Redirect code matching
   *
   * @param   Number   code  Status code
   * @return  Boolean
   */
  fetch.isRedirect = function (code) {
  	return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
  };
  
  // expose Promise
  fetch.Promise = global.Promise;
  
  function queue(max) {
      if (max === void 0) { max = 4; }
      var items = []; // TODO
      var pending = 0;
      var closed = false;
      var fulfil_closed;
      function dequeue() {
          if (pending === 0 && items.length === 0) {
              if (fulfil_closed)
                  fulfil_closed();
          }
          if (pending >= max)
              return;
          if (items.length === 0)
              return;
          pending += 1;
          var _a = items.shift(), fn = _a.fn, fulfil = _a.fulfil, reject = _a.reject;
          var promise = fn();
          try {
              promise.then(fulfil, reject).then(function () {
                  pending -= 1;
                  dequeue();
              });
          }
          catch (err) {
              reject(err);
              pending -= 1;
              dequeue();
          }
          dequeue();
      }
      return {
          add: function (fn) {
              if (closed) {
                  throw new Error("Cannot add to a closed queue");
              }
              return new Promise(function (fulfil, reject) {
                  items.push({ fn: fn, fulfil: fulfil, reject: reject });
                  dequeue();
              });
          },
          close: function () {
              closed = true;
              return new Promise(function (fulfil, reject) {
                  if (pending === 0) {
                      fulfil();
                  }
                  else {
                      fulfil_closed = fulfil;
                  }
              });
          }
      };
  }
  
  function clean_html(html) {
  	return html
  		.replace(/<!\[CDATA\[[\s\S]*?\]\]>/gm, '')
  		.replace(/(<script[\s\S]*?>)[\s\S]*?<\/script>/gm, '$1</' + 'script>')
  		.replace(/(<style[\s\S]*?>)[\s\S]*?<\/style>/gm, '$1</' + 'style>')
  		.replace(/<!--[\s\S]*?-->/gm, '');
  }
  
  function resolve(from, to) {
  	return Url.parse(Url.resolve(from, to));
  }
  
  async function _export({
  	cwd,
  	static: static_files = 'static',
  	build_dir = '__sapper__/build',
  	export_dir = '__sapper__/export',
  	basepath = '',
  	timeout = 5000,
  	concurrent = 8,
  	oninfo = __chunk_5.noop,
  	onfile = __chunk_5.noop
  } = {}) {
  	basepath = basepath.replace(/^\//, '');
  
  	cwd = path.resolve(cwd);
  	static_files = path.resolve(cwd, static_files);
  	build_dir = path.resolve(cwd, build_dir);
  	export_dir = path.resolve(cwd, export_dir, basepath);
  
  	// Prep output directory
  	__chunk_5.rimraf(export_dir);
  
  	__chunk_5.copy(static_files, export_dir);
  	__chunk_5.copy(path.join(build_dir, 'client'), path.join(export_dir, 'client'));
  	__chunk_5.copy(path.join(build_dir, 'service-worker.js'), path.join(export_dir, 'service-worker.js'));
  	__chunk_5.copy(path.join(build_dir, 'service-worker.js.map'), path.join(export_dir, 'service-worker.js.map'));
  
  	const defaultPort = process.env.PORT ? parseInt(process.env.PORT) : 3000;
  	const port = await __chunk_1.find(defaultPort);
  
  	const protocol = 'http:';
  	const host = `localhost:${port}`;
  	const origin = `${protocol}//${host}`;
  
  	const root = resolve(origin, basepath);
  	if (!root.href.endsWith('/')) root.href += '/';
  
  	oninfo({
  		message: `Crawling ${root.href}`
  	});
  
  	const proc = child_process.fork(path.resolve(`${build_dir}/server/server.js`), [], {
  		cwd,
  		env: Object.assign({
  			PORT: port,
  			NODE_ENV: 'production',
  			SAPPER_EXPORT: 'true'
  		}, process.env)
  	});
  
  	const seen = new Set();
  	const saved = new Set();
  	const q = queue(concurrent);
  
  	function save(url, status, type, body) {
  		const { pathname } = resolve(origin, url);
  		let file = decodeURIComponent(pathname.slice(1));
  
  		if (saved.has(file)) return;
  		saved.add(file);
  
  		const is_html = type === 'text/html';
  
  		if (is_html) {
  			if (pathname !== '/service-worker-index.html') {
  				file = file === '' ? 'index.html' : `${file}/index.html`;
  			}
  			body = __chunk_6.minify_html(body);
  		}
  
  		onfile({
  			file,
  			size: body.length,
  			status
  		});
  
  		const export_file = path.join(export_dir, file);
  		__chunk_5.mkdirp(path.dirname(export_file));
  		fs.writeFileSync(export_file, body);
  	}
  
  	proc.on('message', message => {
  		if (!message.__sapper__ || message.event !== 'file') return;
  		save(message.url, message.status, message.type, message.body);
  	});
  
  	async function handle(url) {
  		let pathname = url.pathname;
  		if (pathname !== '/service-worker-index.html') {
  			pathname = pathname.replace(root.pathname, '') || '/';
  		}
  
  		if (seen.has(pathname)) return;
  		seen.add(pathname);
  
  		const timeout_deferred = new __chunk_1.Deferred();
  		const the_timeout = setTimeout(() => {
  			timeout_deferred.reject(new Error(`Timed out waiting for ${url.href}`));
  		}, timeout);
  
  		const r = await Promise.race([
  			q.add(() => fetch(url.href, {
  				redirect: 'manual'
  			})),
  			timeout_deferred.promise
  		]);
  
  		clearTimeout(the_timeout); // prevent it hanging at the end
  
  		let type = r.headers.get('Content-Type');
  
  		let body = await r.text();
  
  		const range = ~~(r.status / 100);
  
  		if (range === 2) {
  			if (type === 'text/html') {
  				// parse link rel=preload headers and embed them in the HTML
  				let link = httpLinkHeader.parse(r.headers.get('Link') || '');
  				link.refs.forEach((ref) => {
  					if (ref.rel === 'preload') {
  						body = body.replace('</head>',
  							`<link rel="preload" as=${JSON.stringify(ref.as)} href=${JSON.stringify(ref.uri)}></head>`);
  					}
  				});
  
  				if (pathname !== '/service-worker-index.html') {
  					const cleaned = clean_html(body);
  
  					const base_match = /<base ([\s\S]+?)>/m.exec(cleaned);
  					const base_href = base_match && get_href(base_match[1]);
  					const base = resolve(url.href, base_href);
  
  					let match;
  					let pattern = /<a ([\s\S]+?)>/gm;
  
  					let promise;
  
  					while (match = pattern.exec(cleaned)) {
  						const attrs = match[1];
  						const href = get_href(attrs);
  
  						if (href) {
  							const url = resolve(base.href, href);
  
  							if (url.protocol === protocol && url.host === host) {
  								promise = handle(url);
  							}
  						}
  					}
  
  					await promise;
  				}
  			}
  		}
  
  		if (range === 3) {
  			const location = r.headers.get('Location');
  
  			type = 'text/html';
  			body = `<script>window.location.href = "${location.replace(origin, '')}"</script>`;
  
  			await handle(resolve(root.href, location));
  		}
  
  		save(pathname, r.status, type, body);
  	}
  
  	try {
  		await __chunk_1.wait(port);
  		await handle(root);
  		await handle(resolve(root.href, 'service-worker-index.html'));
  		await q.close();
  
  		proc.kill();
  	} catch (err) {
  		proc.kill();
  		throw err;
  	}
  }
  
  function get_href(attrs) {
  	const match = /href\s*=\s*(?:"(.*?)"|'(.*?)'|([^\s>]*))/.exec(attrs);
  	return match && (match[1] || match[2] || match[3]);
  }
  
  exports.export = _export;
  //# sourceMappingURL=export.js.map
  