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Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar punycode = require('punycode');\nvar util = require('./util');\n\nexports.parse = urlParse;\nexports.resolve = urlResolve;\nexports.resolveObject = urlResolveObject;\nexports.format = urlFormat;\n\nexports.Url = Url;\n\nfunction Url() {\n  this.protocol = null;\n  this.slashes = null;\n  this.auth = null;\n  this.host = null;\n  this.port = null;\n  this.hostname = null;\n  this.hash = null;\n  this.search = null;\n  this.query = null;\n  this.pathname = null;\n  this.path = null;\n  this.href = null;\n}\n\n// Reference: RFC 3986, RFC 1808, RFC 2396\n\n// define these here so at least they only have to be\n// compiled once on the first module load.\nvar protocolPattern = /^([a-z0-9.+-]+:)/i,\n    portPattern = /:[0-9]*$/,\n\n    // Special case for a simple path URL\n    simplePathPattern = /^(\\/\\/?(?!\\/)[^\\?\\s]*)(\\?[^\\s]*)?$/,\n\n    // RFC 2396: characters reserved for delimiting URLs.\n    // We actually just auto-escape these.\n    delims = ['<', '>', '\"', '`', ' ', '\\r', '\\n', '\\t'],\n\n    // RFC 2396: characters not allowed for various reasons.\n    unwise = ['{', '}', '|', '\\\\', '^', '`'].concat(delims),\n\n    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.\n    autoEscape = ['\\''].concat(unwise),\n    // Characters that are never ever allowed in a hostname.\n    // Note that any invalid chars are also handled, but these\n    // are the ones that are *expected* to be seen, so we fast-path\n    // them.\n    nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),\n    hostEndingChars = ['/', '?', '#'],\n    hostnameMaxLen = 255,\n    hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,\n    hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,\n    // protocols that can allow \"unsafe\" and \"unwise\" chars.\n    unsafeProtocol = {\n      'javascript': true,\n      'javascript:': true\n    },\n    // protocols that never have a hostname.\n    hostlessProtocol = {\n      'javascript': true,\n      'javascript:': true\n    },\n    // protocols that always contain a // bit.\n    slashedProtocol = {\n      'http': true,\n      'https': true,\n      'ftp': true,\n      'gopher': true,\n      'file': true,\n      'http:': true,\n      'https:': true,\n      'ftp:': true,\n      'gopher:': true,\n      'file:': true\n    },\n    querystring = require('querystring');\n\nfunction urlParse(url, parseQueryString, slashesDenoteHost) {\n  if (url && util.isObject(url) && url instanceof Url) return url;\n\n  var u = new Url;\n  u.parse(url, parseQueryString, slashesDenoteHost);\n  return u;\n}\n\nUrl.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {\n  if (!util.isString(url)) {\n    throw new TypeError(\"Parameter 'url' must be a string, not \" + typeof url);\n  }\n\n  // Copy chrome, IE, opera backslash-handling behavior.\n  // Back slashes before the query string get converted to forward slashes\n  // See: https://code.google.com/p/chromium/issues/detail?id=25916\n  var queryIndex = url.indexOf('?'),\n      splitter =\n          (queryIndex !== -1 && queryIndex < url.indexOf('#')) ? '?' : '#',\n      uSplit = url.split(splitter),\n      slashRegex = /\\\\/g;\n  uSplit[0] = uSplit[0].replace(slashRegex, '/');\n  url = uSplit.join(splitter);\n\n  var rest = url;\n\n  // trim before proceeding.\n  // This is to support parse stuff like \"  http://foo.com  \\n\"\n  rest = rest.trim();\n\n  if (!slashesDenoteHost && url.split('#').length === 1) {\n    // Try fast path regexp\n    var simplePath = simplePathPattern.exec(rest);\n    if (simplePath) {\n      this.path = rest;\n      this.href = rest;\n      this.pathname = simplePath[1];\n      if (simplePath[2]) {\n        this.search = simplePath[2];\n        if (parseQueryString) {\n          this.query = querystring.parse(this.search.substr(1));\n        } else {\n          this.query = this.search.substr(1);\n        }\n      } else if (parseQueryString) {\n        this.search = '';\n        this.query = {};\n      }\n      return this;\n    }\n  }\n\n  var proto = protocolPattern.exec(rest);\n  if (proto) {\n    proto = proto[0];\n    var lowerProto = proto.toLowerCase();\n    this.protocol = lowerProto;\n    rest = rest.substr(proto.length);\n  }\n\n  // figure out if it's got a host\n  // user@server is *always* interpreted as a hostname, and url\n  // resolution will treat //foo/bar as host=foo,path=bar because that's\n  // how the browser resolves relative URLs.\n  if (slashesDenoteHost || proto || rest.match(/^\\/\\/[^@\\/]+@[^@\\/]+/)) {\n    var slashes = rest.substr(0, 2) === '//';\n    if (slashes && !(proto && hostlessProtocol[proto])) {\n      rest = rest.substr(2);\n      this.slashes = true;\n    }\n  }\n\n  if (!hostlessProtocol[proto] &&\n      (slashes || (proto && !slashedProtocol[proto]))) {\n\n    // there's a hostname.\n    // the first instance of /, ?, ;, or # ends the host.\n    //\n    // If there is an @ in the hostname, then non-host chars *are* allowed\n    // to the left of the last @ sign, unless some host-ending character\n    // comes *before* the @-sign.\n    // URLs are obnoxious.\n    //\n    // ex:\n    // http://a@b@c/ => user:a@b host:c\n    // http://a@b?@c => user:a host:c path:/?@c\n\n    // v0.12 TODO(isaacs): This is not quite how Chrome does things.\n    // Review our test case against browsers more comprehensively.\n\n    // find the first instance of any hostEndingChars\n    var hostEnd = -1;\n    for (var i = 0; i < hostEndingChars.length; i++) {\n      var hec = rest.indexOf(hostEndingChars[i]);\n      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))\n        hostEnd = hec;\n    }\n\n    // at this point, either we have an explicit point where the\n    // auth portion cannot go past, or the last @ char is the decider.\n    var auth, atSign;\n    if (hostEnd === -1) {\n      // atSign can be anywhere.\n      atSign = rest.lastIndexOf('@');\n    } else {\n      // atSign must be in auth portion.\n      // http://a@b/c@d => host:b auth:a path:/c@d\n      atSign = rest.lastIndexOf('@', hostEnd);\n    }\n\n    // Now we have a portion which is definitely the auth.\n    // Pull that off.\n    if (atSign !== -1) {\n      auth = rest.slice(0, atSign);\n      rest = rest.slice(atSign + 1);\n      this.auth = decodeURIComponent(auth);\n    }\n\n    // the host is the remaining to the left of the first non-host char\n    hostEnd = -1;\n    for (var i = 0; i < nonHostChars.length; i++) {\n      var hec = rest.indexOf(nonHostChars[i]);\n      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))\n        hostEnd = hec;\n    }\n    // if we still have not hit it, then the entire thing is a host.\n    if (hostEnd === -1)\n      hostEnd = rest.length;\n\n    this.host = rest.slice(0, hostEnd);\n    rest = rest.slice(hostEnd);\n\n    // pull out port.\n    this.parseHost();\n\n    // we've indicated that there is a hostname,\n    // so even if it's empty, it has to be present.\n    this.hostname = this.hostname || '';\n\n    // if hostname begins with [ and ends with ]\n    // assume that it's an IPv6 address.\n    var ipv6Hostname = this.hostname[0] === '[' &&\n        this.hostname[this.hostname.length - 1] === ']';\n\n    // validate a little.\n    if (!ipv6Hostname) {\n      var hostparts = this.hostname.split(/\\./);\n      for (var i = 0, l = hostparts.length; i < l; i++) {\n        var part = hostparts[i];\n        if (!part) continue;\n        if (!part.match(hostnamePartPattern)) {\n          var newpart = '';\n          for (var j = 0, k = part.length; j < k; j++) {\n            if (part.charCodeAt(j) > 127) {\n              // we replace non-ASCII char with a temporary placeholder\n              // we need this to make sure size of hostname is not\n              // broken by replacing non-ASCII by nothing\n              newpart += 'x';\n            } else {\n              newpart += part[j];\n            }\n          }\n          // we test again with ASCII char only\n          if (!newpart.match(hostnamePartPattern)) {\n            var validParts = hostparts.slice(0, i);\n            var notHost = hostparts.slice(i + 1);\n            var bit = part.match(hostnamePartStart);\n            if (bit) {\n              validParts.push(bit[1]);\n              notHost.unshift(bit[2]);\n            }\n            if (notHost.length) {\n              rest = '/' + notHost.join('.') + rest;\n            }\n            this.hostname = validParts.join('.');\n            break;\n          }\n        }\n      }\n    }\n\n    if (this.hostname.length > hostnameMaxLen) {\n      this.hostname = '';\n    } else {\n      // hostnames are always lower case.\n      this.hostname = this.hostname.toLowerCase();\n    }\n\n    if (!ipv6Hostname) {\n      // IDNA Support: Returns a punycoded representation of \"domain\".\n      // It only converts parts of the domain name that\n      // have non-ASCII characters, i.e. it doesn't matter if\n      // you call it with a domain that already is ASCII-only.\n      this.hostname = punycode.toASCII(this.hostname);\n    }\n\n    var p = this.port ? ':' + this.port : '';\n    var h = this.hostname || '';\n    this.host = h + p;\n    this.href += this.host;\n\n    // strip [ and ] from the hostname\n    // the host field still retains them, though\n    if (ipv6Hostname) {\n      this.hostname = this.hostname.substr(1, this.hostname.length - 2);\n      if (rest[0] !== '/') {\n        rest = '/' + rest;\n      }\n    }\n  }\n\n  // now rest is set to the post-host stuff.\n  // chop off any delim chars.\n  if (!unsafeProtocol[lowerProto]) {\n\n    // First, make 100% sure that any \"autoEscape\" chars get\n    // escaped, even if encodeURIComponent doesn't think they\n    // need to be.\n    for (var i = 0, l = autoEscape.length; i < l; i++) {\n      var ae = autoEscape[i];\n      if (rest.indexOf(ae) === -1)\n        continue;\n      var esc = encodeURIComponent(ae);\n      if (esc === ae) {\n        esc = escape(ae);\n      }\n      rest = rest.split(ae).join(esc);\n    }\n  }\n\n\n  // chop off from the tail first.\n  var hash = rest.indexOf('#');\n  if (hash !== -1) {\n    // got a fragment string.\n    this.hash = rest.substr(hash);\n    rest = rest.slice(0, hash);\n  }\n  var qm = rest.indexOf('?');\n  if (qm !== -1) {\n    this.search = rest.substr(qm);\n    this.query = rest.substr(qm + 1);\n    if (parseQueryString) {\n      this.query = querystring.parse(this.query);\n    }\n    rest = rest.slice(0, qm);\n  } else if (parseQueryString) {\n    // no query string, but parseQueryString still requested\n    this.search = '';\n    this.query = {};\n  }\n  if (rest) this.pathname = rest;\n  if (slashedProtocol[lowerProto] &&\n      this.hostname && !this.pathname) {\n    this.pathname = '/';\n  }\n\n  //to support http.request\n  if (this.pathname || this.search) {\n    var p = this.pathname || '';\n    var s = this.search || '';\n    this.path = p + s;\n  }\n\n  // finally, reconstruct the href based on what has been validated.\n  this.href = this.format();\n  return this;\n};\n\n// format a parsed object into a url string\nfunction urlFormat(obj) {\n  // ensure it's an object, and not a string url.\n  // If it's an obj, this is a no-op.\n  // this way, you can call url_format() on strings\n  // to clean up potentially wonky urls.\n  if (util.isString(obj)) obj = urlParse(obj);\n  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);\n  return obj.format();\n}\n\nUrl.prototype.format = function() {\n  var auth = this.auth || '';\n  if (auth) {\n    auth = encodeURIComponent(auth);\n    auth = auth.replace(/%3A/i, ':');\n    auth += '@';\n  }\n\n  var protocol = this.protocol || '',\n      pathname = this.pathname || '',\n      hash = this.hash || '',\n      host = false,\n      query = '';\n\n  if (this.host) {\n    host = auth + this.host;\n  } else if (this.hostname) {\n    host = auth + (this.hostname.indexOf(':') === -1 ?\n        this.hostname :\n        '[' + this.hostname + ']');\n    if (this.port) {\n      host += ':' + this.port;\n    }\n  }\n\n  if (this.query &&\n      util.isObject(this.query) &&\n      Object.keys(this.query).length) {\n    query = querystring.stringify(this.query);\n  }\n\n  var search = this.search || (query && ('?' + query)) || '';\n\n  if (protocol && protocol.substr(-1) !== ':') protocol += ':';\n\n  // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.\n  // unless they had them to begin with.\n  if (this.slashes ||\n      (!protocol || slashedProtocol[protocol]) && host !== false) {\n    host = '//' + (host || '');\n    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;\n  } else if (!host) {\n    host = '';\n  }\n\n  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;\n  if (search && search.charAt(0) !== '?') search = '?' + search;\n\n  pathname = pathname.replace(/[?#]/g, function(match) {\n    return encodeURIComponent(match);\n  });\n  search = search.replace('#', '%23');\n\n  return protocol + host + pathname + search + hash;\n};\n\nfunction urlResolve(source, relative) {\n  return urlParse(source, false, true).resolve(relative);\n}\n\nUrl.prototype.resolve = function(relative) {\n  return this.resolveObject(urlParse(relative, false, true)).format();\n};\n\nfunction urlResolveObject(source, relative) {\n  if (!source) return relative;\n  return urlParse(source, false, true).resolveObject(relative);\n}\n\nUrl.prototype.resolveObject = function(relative) {\n  if (util.isString(relative)) {\n    var rel = new Url();\n    rel.parse(relative, false, true);\n    relative = rel;\n  }\n\n  var result = new Url();\n  var tkeys = Object.keys(this);\n  for (var tk = 0; tk < tkeys.length; tk++) {\n    var tkey = tkeys[tk];\n    result[tkey] = this[tkey];\n  }\n\n  // hash is always overridden, no matter what.\n  // even href=\"\" will remove it.\n  result.hash = relative.hash;\n\n  // if the relative url is empty, then there's nothing left to do here.\n  if (relative.href === '') {\n    result.href = result.format();\n    return result;\n  }\n\n  // hrefs like //foo/bar always cut to the protocol.\n  if (relative.slashes && !relative.protocol) {\n    // take everything except the protocol from relative\n    var rkeys = Object.keys(relative);\n    for (var rk = 0; rk < rkeys.length; rk++) {\n      var rkey = rkeys[rk];\n      if (rkey !== 'protocol')\n        result[rkey] = relative[rkey];\n    }\n\n    //urlParse appends trailing / to urls like http://www.example.com\n    if (slashedProtocol[result.protocol] &&\n        result.hostname && !result.pathname) {\n      result.path = result.pathname = '/';\n    }\n\n    result.href = result.format();\n    return result;\n  }\n\n  if (relative.protocol && relative.protocol !== result.protocol) {\n    // if it's a known url protocol, then changing\n    // the protocol does weird things\n    // first, if it's not file:, then we MUST have a host,\n    // and if there was a path\n    // to begin with, then we MUST have a path.\n    // if it is file:, then the host is dropped,\n    // because that's known to be hostless.\n    // anything else is assumed to be absolute.\n    if (!slashedProtocol[relative.protocol]) {\n      var keys = Object.keys(relative);\n      for (var v = 0; v < keys.length; v++) {\n        var k = keys[v];\n        result[k] = relative[k];\n      }\n      result.href = result.format();\n      return result;\n    }\n\n    result.protocol = relative.protocol;\n    if (!relative.host && !hostlessProtocol[relative.protocol]) {\n      var relPath = (relative.pathname || '').split('/');\n      while (relPath.length && !(relative.host = relPath.shift()));\n      if (!relative.host) relative.host = '';\n      if (!relative.hostname) relative.hostname = '';\n      if (relPath[0] !== '') relPath.unshift('');\n      if (relPath.length < 2) relPath.unshift('');\n      result.pathname = relPath.join('/');\n    } else {\n      result.pathname = relative.pathname;\n    }\n    result.search = relative.search;\n    result.query = relative.query;\n    result.host = relative.host || '';\n    result.auth = relative.auth;\n    result.hostname = relative.hostname || relative.host;\n    result.port = relative.port;\n    // to support http.request\n    if (result.pathname || result.search) {\n      var p = result.pathname || '';\n      var s = result.search || '';\n      result.path = p + s;\n    }\n    result.slashes = result.slashes || relative.slashes;\n    result.href = result.format();\n    return result;\n  }\n\n  var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),\n      isRelAbs = (\n          relative.host ||\n          relative.pathname && relative.pathname.charAt(0) === '/'\n      ),\n      mustEndAbs = (isRelAbs || isSourceAbs ||\n                    (result.host && relative.pathname)),\n      removeAllDots = mustEndAbs,\n      srcPath = result.pathname && result.pathname.split('/') || [],\n      relPath = relative.pathname && relative.pathname.split('/') || [],\n      psychotic = result.protocol && !slashedProtocol[result.protocol];\n\n  // if the url is a non-slashed url, then relative\n  // links like ../.. should be able\n  // to crawl up to the hostname, as well.  This is strange.\n  // result.protocol has already been set by now.\n  // Later on, put the first path part into the host field.\n  if (psychotic) {\n    result.hostname = '';\n    result.port = null;\n    if (result.host) {\n      if (srcPath[0] === '') srcPath[0] = result.host;\n      else srcPath.unshift(result.host);\n    }\n    result.host = '';\n    if (relative.protocol) {\n      relative.hostname = null;\n      relative.port = null;\n      if (relative.host) {\n        if (relPath[0] === '') relPath[0] = relative.host;\n        else relPath.unshift(relative.host);\n      }\n      relative.host = null;\n    }\n    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');\n  }\n\n  if (isRelAbs) {\n    // it's absolute.\n    result.host = (relative.host || relative.host === '') ?\n                  relative.host : result.host;\n    result.hostname = (relative.hostname || relative.hostname === '') ?\n                      relative.hostname : result.hostname;\n    result.search = relative.search;\n    result.query = relative.query;\n    srcPath = relPath;\n    // fall through to the dot-handling below.\n  } else if (relPath.length) {\n    // it's relative\n    // throw away the existing file, and take the new path instead.\n    if (!srcPath) srcPath = [];\n    srcPath.pop();\n    srcPath = srcPath.concat(relPath);\n    result.search = relative.search;\n    result.query = relative.query;\n  } else if (!util.isNullOrUndefined(relative.search)) {\n    // just pull out the search.\n    // like href='?foo'.\n    // Put this after the other two cases because it simplifies the booleans\n    if (psychotic) {\n      result.hostname = result.host = srcPath.shift();\n      //occationaly the auth can get stuck only in host\n      //this especially happens in cases like\n      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n      var authInHost = result.host && result.host.indexOf('@') > 0 ?\n                       result.host.split('@') : false;\n      if (authInHost) {\n        result.auth = authInHost.shift();\n        result.host = result.hostname = authInHost.shift();\n      }\n    }\n    result.search = relative.search;\n    result.query = relative.query;\n    //to support http.request\n    if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n      result.path = (result.pathname ? result.pathname : '') +\n                    (result.search ? result.search : '');\n    }\n    result.href = result.format();\n    return result;\n  }\n\n  if (!srcPath.length) {\n    // no path at all.  easy.\n    // we've already handled the other stuff above.\n    result.pathname = null;\n    //to support http.request\n    if (result.search) {\n      result.path = '/' + result.search;\n    } else {\n      result.path = null;\n    }\n    result.href = result.format();\n    return result;\n  }\n\n  // if a url ENDs in . or .., then it must get a trailing slash.\n  // however, if it ends in anything else non-slashy,\n  // then it must NOT get a trailing slash.\n  var last = srcPath.slice(-1)[0];\n  var hasTrailingSlash = (\n      (result.host || relative.host || srcPath.length > 1) &&\n      (last === '.' || last === '..') || last === '');\n\n  // strip single dots, resolve double dots to parent dir\n  // if the path tries to go above the root, `up` ends up > 0\n  var up = 0;\n  for (var i = srcPath.length; i >= 0; i--) {\n    last = srcPath[i];\n    if (last === '.') {\n      srcPath.splice(i, 1);\n    } else if (last === '..') {\n      srcPath.splice(i, 1);\n      up++;\n    } else if (up) {\n      srcPath.splice(i, 1);\n      up--;\n    }\n  }\n\n  // if the path is allowed to go above the root, restore leading ..s\n  if (!mustEndAbs && !removeAllDots) {\n    for (; up--; up) {\n      srcPath.unshift('..');\n    }\n  }\n\n  if (mustEndAbs && srcPath[0] !== '' &&\n      (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {\n    srcPath.unshift('');\n  }\n\n  if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {\n    srcPath.push('');\n  }\n\n  var isAbsolute = srcPath[0] === '' ||\n      (srcPath[0] && srcPath[0].charAt(0) === '/');\n\n  // put the host back\n  if (psychotic) {\n    result.hostname = result.host = isAbsolute ? '' :\n                                    srcPath.length ? srcPath.shift() : '';\n    //occationaly the auth can get stuck only in host\n    //this especially happens in cases like\n    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n    var authInHost = result.host && result.host.indexOf('@') > 0 ?\n                     result.host.split('@') : false;\n    if (authInHost) {\n      result.auth = authInHost.shift();\n      result.host = result.hostname = authInHost.shift();\n    }\n  }\n\n  mustEndAbs = mustEndAbs || (result.host && srcPath.length);\n\n  if (mustEndAbs && !isAbsolute) {\n    srcPath.unshift('');\n  }\n\n  if (!srcPath.length) {\n    result.pathname = null;\n    result.path = null;\n  } else {\n    result.pathname = srcPath.join('/');\n  }\n\n  //to support request.http\n  if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n    result.path = (result.pathname ? result.pathname : '') +\n                  (result.search ? result.search : '');\n  }\n  result.auth = relative.auth || result.auth;\n  result.slashes = result.slashes || relative.slashes;\n  result.href = result.format();\n  return result;\n};\n\nUrl.prototype.parseHost = function() {\n  var host = this.host;\n  var port = portPattern.exec(host);\n  if (port) {\n    port = port[0];\n    if (port !== ':') {\n      this.port = port.substr(1);\n    }\n    host = host.substr(0, host.length - port.length);\n  }\n  if (host) this.hostname = host;\n};\n","/*! https://mths.be/punycode v1.4.1 by @mathias */\n;(function(root) {\n\n\t/** Detect free variables */\n\tvar freeExports = typeof exports == 'object' && exports &&\n\t\t!exports.nodeType && exports;\n\tvar freeModule = typeof module == 'object' && module &&\n\t\t!module.nodeType && module;\n\tvar freeGlobal = typeof global == 'object' && global;\n\tif (\n\t\tfreeGlobal.global === freeGlobal ||\n\t\tfreeGlobal.window === freeGlobal ||\n\t\tfreeGlobal.self === freeGlobal\n\t) {\n\t\troot = freeGlobal;\n\t}\n\n\t/**\n\t * The `punycode` object.\n\t * @name punycode\n\t * @type Object\n\t */\n\tvar punycode,\n\n\t/** Highest positive signed 32-bit float value */\n\tmaxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1\n\n\t/** Bootstring parameters */\n\tbase = 36,\n\ttMin = 1,\n\ttMax = 26,\n\tskew = 38,\n\tdamp = 700,\n\tinitialBias = 72,\n\tinitialN = 128, // 0x80\n\tdelimiter = '-', // '\\x2D'\n\n\t/** Regular expressions */\n\tregexPunycode = /^xn--/,\n\tregexNonASCII = /[^\\x20-\\x7E]/, // unprintable ASCII chars + non-ASCII chars\n\tregexSeparators = /[\\x2E\\u3002\\uFF0E\\uFF61]/g, // RFC 3490 separators\n\n\t/** Error messages */\n\terrors = {\n\t\t'overflow': 'Overflow: input needs wider integers to process',\n\t\t'not-basic': 'Illegal input >= 0x80 (not a basic code point)',\n\t\t'invalid-input': 'Invalid input'\n\t},\n\n\t/** Convenience shortcuts */\n\tbaseMinusTMin = base - tMin,\n\tfloor = Math.floor,\n\tstringFromCharCode = String.fromCharCode,\n\n\t/** Temporary variable */\n\tkey;\n\n\t/*--------------------------------------------------------------------------*/\n\n\t/**\n\t * A generic error utility function.\n\t * @private\n\t * @param {String} type The error type.\n\t * @returns {Error} Throws a `RangeError` with the applicable error message.\n\t */\n\tfunction error(type) {\n\t\tthrow new RangeError(errors[type]);\n\t}\n\n\t/**\n\t * A generic `Array#map` utility function.\n\t * @private\n\t * @param {Array} array The array to iterate over.\n\t * @param {Function} callback The function that gets called for every array\n\t * item.\n\t * @returns {Array} A new array of values returned by the callback function.\n\t */\n\tfunction map(array, fn) {\n\t\tvar length = array.length;\n\t\tvar result = [];\n\t\twhile (length--) {\n\t\t\tresult[length] = fn(array[length]);\n\t\t}\n\t\treturn result;\n\t}\n\n\t/**\n\t * A simple `Array#map`-like wrapper to work with domain name strings or email\n\t * addresses.\n\t * @private\n\t * @param {String} domain The domain name or email address.\n\t * @param {Function} callback The function that gets called for every\n\t * character.\n\t * @returns {Array} A new string of characters returned by the callback\n\t * function.\n\t */\n\tfunction mapDomain(string, fn) {\n\t\tvar parts = string.split('@');\n\t\tvar result = '';\n\t\tif (parts.length > 1) {\n\t\t\t// In email addresses, only the domain name should be punycoded. Leave\n\t\t\t// the local part (i.e. everything up to `@`) intact.\n\t\t\tresult = parts[0] + '@';\n\t\t\tstring = parts[1];\n\t\t}\n\t\t// Avoid `split(regex)` for IE8 compatibility. See #17.\n\t\tstring = string.replace(regexSeparators, '\\x2E');\n\t\tvar labels = string.split('.');\n\t\tvar encoded = map(labels, fn).join('.');\n\t\treturn result + encoded;\n\t}\n\n\t/**\n\t * Creates an array containing the numeric code points of each Unicode\n\t * character in the string. While JavaScript uses UCS-2 internally,\n\t * this function will convert a pair of surrogate halves (each of which\n\t * UCS-2 exposes as separate characters) into a single code point,\n\t * matching UTF-16.\n\t * @see `punycode.ucs2.encode`\n\t * @see <https://mathiasbynens.be/notes/javascript-encoding>\n\t * @memberOf punycode.ucs2\n\t * @name decode\n\t * @param {String} string The Unicode input string (UCS-2).\n\t * @returns {Array} The new array of code points.\n\t */\n\tfunction ucs2decode(string) {\n\t\tvar output = [],\n\t\t    counter = 0,\n\t\t    length = string.length,\n\t\t    value,\n\t\t    extra;\n\t\twhile (counter < length) {\n\t\t\tvalue = string.charCodeAt(counter++);\n\t\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t\t// high surrogate, and there is a next character\n\t\t\t\textra = string.charCodeAt(counter++);\n\t\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t\t} else {\n\t\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\t\toutput.push(value);\n\t\t\t\t\tcounter--;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\toutput.push(value);\n\t\t\t}\n\t\t}\n\t\treturn output;\n\t}\n\n\t/**\n\t * Creates a string based on an array of numeric code points.\n\t * @see `punycode.ucs2.decode`\n\t * @memberOf punycode.ucs2\n\t * @name encode\n\t * @param {Array} codePoints The array of numeric code points.\n\t * @returns {String} The new Unicode string (UCS-2).\n\t */\n\tfunction ucs2encode(array) {\n\t\treturn map(array, function(value) {\n\t\t\tvar output = '';\n\t\t\tif (value > 0xFFFF) {\n\t\t\t\tvalue -= 0x10000;\n\t\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t\t}\n\t\t\toutput += stringFromCharCode(value);\n\t\t\treturn output;\n\t\t}).join('');\n\t}\n\n\t/**\n\t * Converts a basic code point into a digit/integer.\n\t * @see `digitToBasic()`\n\t * @private\n\t * @param {Number} codePoint The basic numeric code point value.\n\t * @returns {Number} The numeric value of a basic code point (for use in\n\t * representing integers) in the range `0` to `base - 1`, or `base` if\n\t * the code point does not represent a value.\n\t */\n\tfunction basicToDigit(codePoint) {\n\t\tif (codePoint - 48 < 10) {\n\t\t\treturn codePoint - 22;\n\t\t}\n\t\tif (codePoint - 65 < 26) {\n\t\t\treturn codePoint - 65;\n\t\t}\n\t\tif (codePoint - 97 < 26) {\n\t\t\treturn codePoint - 97;\n\t\t}\n\t\treturn base;\n\t}\n\n\t/**\n\t * Converts a digit/integer into a basic code point.\n\t * @see `basicToDigit()`\n\t * @private\n\t * @param {Number} digit The numeric value of a basic code point.\n\t * @returns {Number} The basic code point whose value (when used for\n\t * representing integers) is `digit`, which needs to be in the range\n\t * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is\n\t * used; else, the lowercase form is used. The behavior is undefined\n\t * if `flag` is non-zero and `digit` has no uppercase form.\n\t */\n\tfunction digitToBasic(digit, flag) {\n\t\t//  0..25 map to ASCII a..z or A..Z\n\t\t// 26..35 map to ASCII 0..9\n\t\treturn digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);\n\t}\n\n\t/**\n\t * Bias adaptation function as per section 3.4 of RFC 3492.\n\t * https://tools.ietf.org/html/rfc3492#section-3.4\n\t * @private\n\t */\n\tfunction adapt(delta, numPoints, firstTime) {\n\t\tvar k = 0;\n\t\tdelta = firstTime ? floor(delta / damp) : delta >> 1;\n\t\tdelta += floor(delta / numPoints);\n\t\tfor (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {\n\t\t\tdelta = floor(delta / baseMinusTMin);\n\t\t}\n\t\treturn floor(k + (baseMinusTMin + 1) * delta / (delta + skew));\n\t}\n\n\t/**\n\t * Converts a Punycode string of ASCII-only symbols to a string of Unicode\n\t * symbols.\n\t * @memberOf punycode\n\t * @param {String} input The Punycode string of ASCII-only symbols.\n\t * @returns {String} The resulting string of Unicode symbols.\n\t */\n\tfunction decode(input) {\n\t\t// Don't use UCS-2\n\t\tvar output = [],\n\t\t    inputLength = input.length,\n\t\t    out,\n\t\t    i = 0,\n\t\t    n = initialN,\n\t\t    bias = initialBias,\n\t\t    basic,\n\t\t    j,\n\t\t    index,\n\t\t    oldi,\n\t\t    w,\n\t\t    k,\n\t\t    digit,\n\t\t    t,\n\t\t    /** Cached calculation results */\n\t\t    baseMinusT;\n\n\t\t// Handle the basic code points: let `basic` be the number of input code\n\t\t// points before the last delimiter, or `0` if there is none, then copy\n\t\t// the first basic code points to the output.\n\n\t\tbasic = input.lastIndexOf(delimiter);\n\t\tif (basic < 0) {\n\t\t\tbasic = 0;\n\t\t}\n\n\t\tfor (j = 0; j < basic; ++j) {\n\t\t\t// if it's not a basic code point\n\t\t\tif (input.charCodeAt(j) >= 0x80) {\n\t\t\t\terror('not-basic');\n\t\t\t}\n\t\t\toutput.push(input.charCodeAt(j));\n\t\t}\n\n\t\t// Main decoding loop: start just after the last delimiter if any basic code\n\t\t// points were copied; start at the beginning otherwise.\n\n\t\tfor (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {\n\n\t\t\t// `index` is the index of the next character to be consumed.\n\t\t\t// Decode a generalized variable-length integer into `delta`,\n\t\t\t// which gets added to `i`. The overflow checking is easier\n\t\t\t// if we increase `i` as we go, then subtract off its starting\n\t\t\t// value at the end to obtain `delta`.\n\t\t\tfor (oldi = i, w = 1, k = base; /* no condition */; k += base) {\n\n\t\t\t\tif (index >= inputLength) {\n\t\t\t\t\terror('invalid-input');\n\t\t\t\t}\n\n\t\t\t\tdigit = basicToDigit(input.charCodeAt(index++));\n\n\t\t\t\tif (digit >= base || digit > floor((maxInt - i) / w)) {\n\t\t\t\t\terror('overflow');\n\t\t\t\t}\n\n\t\t\t\ti += digit * w;\n\t\t\t\tt = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);\n\n\t\t\t\tif (digit < t) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tbaseMinusT = base - t;\n\t\t\t\tif (w > floor(maxInt / baseMinusT)) {\n\t\t\t\t\terror('overflow');\n\t\t\t\t}\n\n\t\t\t\tw *= baseMinusT;\n\n\t\t\t}\n\n\t\t\tout = output.length + 1;\n\t\t\tbias = adapt(i - oldi, out, oldi == 0);\n\n\t\t\t// `i` was supposed to wrap around from `out` to `0`,\n\t\t\t// incrementing `n` each time, so we'll fix that now:\n\t\t\tif (floor(i / out) > maxInt - n) {\n\t\t\t\terror('overflow');\n\t\t\t}\n\n\t\t\tn += floor(i / out);\n\t\t\ti %= out;\n\n\t\t\t// Insert `n` at position `i` of the output\n\t\t\toutput.splice(i++, 0, n);\n\n\t\t}\n\n\t\treturn ucs2encode(output);\n\t}\n\n\t/**\n\t * Converts a string of Unicode symbols (e.g. a domain name label) to a\n\t * Punycode string of ASCII-only symbols.\n\t * @memberOf punycode\n\t * @param {String} input The string of Unicode symbols.\n\t * @returns {String} The resulting Punycode string of ASCII-only symbols.\n\t */\n\tfunction encode(input) {\n\t\tvar n,\n\t\t    delta,\n\t\t    handledCPCount,\n\t\t    basicLength,\n\t\t    bias,\n\t\t    j,\n\t\t    m,\n\t\t    q,\n\t\t    k,\n\t\t    t,\n\t\t    currentValue,\n\t\t    output = [],\n\t\t    /** `inputLength` will hold the number of code points in `input`. */\n\t\t    inputLength,\n\t\t    /** Cached calculation results */\n\t\t    handledCPCountPlusOne,\n\t\t    baseMinusT,\n\t\t    qMinusT;\n\n\t\t// Convert the input in UCS-2 to Unicode\n\t\tinput = ucs2decode(input);\n\n\t\t// Cache the length\n\t\tinputLength = input.length;\n\n\t\t// Initialize the state\n\t\tn = initialN;\n\t\tdelta = 0;\n\t\tbias = initialBias;\n\n\t\t// Handle the basic code points\n\t\tfor (j = 0; j < inputLength; ++j) {\n\t\t\tcurrentValue = input[j];\n\t\t\tif (currentValue < 0x80) {\n\t\t\t\toutput.push(stringFromCharCode(currentValue));\n\t\t\t}\n\t\t}\n\n\t\thandledCPCount = basicLength = output.length;\n\n\t\t// `handledCPCount` is the number of code points that have been handled;\n\t\t// `basicLength` is the number of basic code points.\n\n\t\t// Finish the basic string - if it is not empty - with a delimiter\n\t\tif (basicLength) {\n\t\t\toutput.push(delimiter);\n\t\t}\n\n\t\t// Main encoding loop:\n\t\twhile (handledCPCount < inputLength) {\n\n\t\t\t// All non-basic code points < n have been handled already. Find the next\n\t\t\t// larger one:\n\t\t\tfor (m = maxInt, j = 0; j < inputLength; ++j) {\n\t\t\t\tcurrentValue = input[j];\n\t\t\t\tif (currentValue >= n && currentValue < m) {\n\t\t\t\t\tm = currentValue;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,\n\t\t\t// but guard against overflow\n\t\t\thandledCPCountPlusOne = handledCPCount + 1;\n\t\t\tif (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {\n\t\t\t\terror('overflow');\n\t\t\t}\n\n\t\t\tdelta += (m - n) * handledCPCountPlusOne;\n\t\t\tn = m;\n\n\t\t\tfor (j = 0; j < inputLength; ++j) {\n\t\t\t\tcurrentValue = input[j];\n\n\t\t\t\tif (currentValue < n && ++delta > maxInt) {\n\t\t\t\t\terror('overflow');\n\t\t\t\t}\n\n\t\t\t\tif (currentValue == n) {\n\t\t\t\t\t// Represent delta as a generalized variable-length integer\n\t\t\t\t\tfor (q = delta, k = base; /* no condition */; k += base) {\n\t\t\t\t\t\tt = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);\n\t\t\t\t\t\tif (q < t) {\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tqMinusT = q - t;\n\t\t\t\t\t\tbaseMinusT = base - t;\n\t\t\t\t\t\toutput.push(\n\t\t\t\t\t\t\tstringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))\n\t\t\t\t\t\t);\n\t\t\t\t\t\tq = floor(qMinusT / baseMinusT);\n\t\t\t\t\t}\n\n\t\t\t\t\toutput.push(stringFromCharCode(digitToBasic(q, 0)));\n\t\t\t\t\tbias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);\n\t\t\t\t\tdelta = 0;\n\t\t\t\t\t++handledCPCount;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t++delta;\n\t\t\t++n;\n\n\t\t}\n\t\treturn output.join('');\n\t}\n\n\t/**\n\t * Converts a Punycode string representing a domain name or an email address\n\t * to Unicode. Only the Punycoded parts of the input will be converted, i.e.\n\t * it doesn't matter if you call it on a string that has already been\n\t * converted to Unicode.\n\t * @memberOf punycode\n\t * @param {String} input The Punycoded domain name or email address to\n\t * convert to Unicode.\n\t * @returns {String} The Unicode representation of the given Punycode\n\t * string.\n\t */\n\tfunction toUnicode(input) {\n\t\treturn mapDomain(input, function(string) {\n\t\t\treturn regexPunycode.test(string)\n\t\t\t\t? decode(string.slice(4).toLowerCase())\n\t\t\t\t: string;\n\t\t});\n\t}\n\n\t/**\n\t * Converts a Unicode string representing a domain name or an email address to\n\t * Punycode. Only the non-ASCII parts of the domain name will be converted,\n\t * i.e. it doesn't matter if you call it with a domain that's already in\n\t * ASCII.\n\t * @memberOf punycode\n\t * @param {String} input The domain name or email address to convert, as a\n\t * Unicode string.\n\t * @returns {String} The Punycode representation of the given domain name or\n\t * email address.\n\t */\n\tfunction toASCII(input) {\n\t\treturn mapDomain(input, function(string) {\n\t\t\treturn regexNonASCII.test(string)\n\t\t\t\t? 'xn--' + encode(string)\n\t\t\t\t: string;\n\t\t});\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\t/** Define the public API */\n\tpunycode = {\n\t\t/**\n\t\t * A string representing the current Punycode.js version number.\n\t\t * @memberOf punycode\n\t\t * @type String\n\t\t */\n\t\t'version': '1.4.1',\n\t\t/**\n\t\t * An object of methods to convert from JavaScript's internal character\n\t\t * representation (UCS-2) to Unicode code points, and back.\n\t\t * @see <https://mathiasbynens.be/notes/javascript-encoding>\n\t\t * @memberOf punycode\n\t\t * @type Object\n\t\t */\n\t\t'ucs2': {\n\t\t\t'decode': ucs2decode,\n\t\t\t'encode': ucs2encode\n\t\t},\n\t\t'decode': decode,\n\t\t'encode': encode,\n\t\t'toASCII': toASCII,\n\t\t'toUnicode': toUnicode\n\t};\n\n\t/** Expose `punycode` */\n\t// Some AMD build optimizers, like r.js, check for specific condition patterns\n\t// like the following:\n\tif (\n\t\ttypeof define == 'function' &&\n\t\ttypeof define.amd == 'object' &&\n\t\tdefine.amd\n\t) {\n\t\tdefine('punycode', function() {\n\t\t\treturn punycode;\n\t\t});\n\t} else if (freeExports && freeModule) {\n\t\tif (module.exports == freeExports) {\n\t\t\t// in Node.js, io.js, or RingoJS v0.8.0+\n\t\t\tfreeModule.exports = punycode;\n\t\t} else {\n\t\t\t// in Narwhal or RingoJS v0.7.0-\n\t\t\tfor (key in punycode) {\n\t\t\t\tpunycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);\n\t\t\t}\n\t\t}\n\t} else {\n\t\t// in Rhino or a web browser\n\t\troot.punycode = punycode;\n\t}\n\n}(this));\n","'use strict';\n\nmodule.exports = {\n  isString: function(arg) {\n    return typeof(arg) === 'string';\n  },\n  isObject: function(arg) {\n    return typeof(arg) === 'object' && arg !== null;\n  },\n  isNull: function(arg) {\n    return arg === null;\n  },\n  isNullOrUndefined: function(arg) {\n    return arg == null;\n  }\n};\n","module.exports = extend\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction extend() {\n    var target = {}\n\n    for (var i = 0; i < arguments.length; i++) {\n        var source = arguments[i]\n\n        for (var key in source) {\n            if (hasOwnProperty.call(source, key)) {\n                target[key] = source[key]\n            }\n        }\n    }\n\n    return target\n}\n","module.exports = {\n  \"100\": \"Continue\",\n  \"101\": \"Switching Protocols\",\n  \"102\": \"Processing\",\n  \"200\": \"OK\",\n  \"201\": \"Created\",\n  \"202\": \"Accepted\",\n  \"203\": \"Non-Authoritative Information\",\n  \"204\": \"No Content\",\n  \"205\": \"Reset Content\",\n  \"206\": \"Partial Content\",\n  \"207\": \"Multi-Status\",\n  \"208\": \"Already Reported\",\n  \"226\": \"IM Used\",\n  \"300\": \"Multiple Choices\",\n  \"301\": \"Moved Permanently\",\n  \"302\": \"Found\",\n  \"303\": \"See Other\",\n  \"304\": \"Not Modified\",\n  \"305\": \"Use Proxy\",\n  \"307\": \"Temporary Redirect\",\n  \"308\": \"Permanent Redirect\",\n  \"400\": \"Bad Request\",\n  \"401\": \"Unauthorized\",\n  \"402\": \"Payment Required\",\n  \"403\": \"Forbidden\",\n  \"404\": \"Not Found\",\n  \"405\": \"Method Not Allowed\",\n  \"406\": \"Not Acceptable\",\n  \"407\": \"Proxy Authentication Required\",\n  \"408\": \"Request Timeout\",\n  \"409\": \"Conflict\",\n  \"410\": \"Gone\",\n  \"411\": \"Length Required\",\n  \"412\": \"Precondition Failed\",\n  \"413\": \"Payload Too Large\",\n  \"414\": \"URI Too Long\",\n  \"415\": \"Unsupported Media Type\",\n  \"416\": \"Range Not Satisfiable\",\n  \"417\": \"Expectation Failed\",\n  \"418\": \"I'm a teapot\",\n  \"421\": \"Misdirected Request\",\n  \"422\": \"Unprocessable Entity\",\n  \"423\": \"Locked\",\n  \"424\": \"Failed Dependency\",\n  \"425\": \"Unordered Collection\",\n  \"426\": \"Upgrade Required\",\n  \"428\": \"Precondition Required\",\n  \"429\": \"Too Many Requests\",\n  \"431\": \"Request Header Fields Too Large\",\n  \"451\": \"Unavailable For Legal Reasons\",\n  \"500\": \"Internal Server Error\",\n  \"501\": \"Not Implemented\",\n  \"502\": \"Bad Gateway\",\n  \"503\": \"Service Unavailable\",\n  \"504\": \"Gateway Timeout\",\n  \"505\": \"HTTP Version Not Supported\",\n  \"506\": \"Variant Also Negotiates\",\n  \"507\": \"Insufficient Storage\",\n  \"508\": \"Loop Detected\",\n  \"509\": \"Bandwidth Limit Exceeded\",\n  \"510\": \"Not Extended\",\n  \"511\": \"Network Authentication Required\"\n}\n","// https://github.com/tc39/proposal-object-getownpropertydescriptors\nvar $export = require('./_export');\nvar ownKeys = require('./_own-keys');\nvar toIObject = require('./_to-iobject');\nvar gOPD = require('./_object-gopd');\nvar createProperty = require('./_create-property');\n\n$export($export.S, 'Object', {\n  getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {\n    var O = toIObject(object);\n    var getDesc = gOPD.f;\n    var keys = ownKeys(O);\n    var result = {};\n    var i = 0;\n    var key, desc;\n    while (keys.length > i) {\n      desc = getDesc(O, key = keys[i++]);\n      if (desc !== undefined) createProperty(result, key, desc);\n    }\n    return result;\n  }\n});\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n// If obj.hasOwnProperty has been overridden, then calling\n// obj.hasOwnProperty(prop) will break.\n// See: https://github.com/joyent/node/issues/1707\nfunction hasOwnProperty(obj, prop) {\n  return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nmodule.exports = function(qs, sep, eq, options) {\n  sep = sep || '&';\n  eq = eq || '=';\n  var obj = {};\n\n  if (typeof qs !== 'string' || qs.length === 0) {\n    return obj;\n  }\n\n  var regexp = /\\+/g;\n  qs = qs.split(sep);\n\n  var maxKeys = 1000;\n  if (options && typeof options.maxKeys === 'number') {\n    maxKeys = options.maxKeys;\n  }\n\n  var len = qs.length;\n  // maxKeys <= 0 means that we should not limit keys count\n  if (maxKeys > 0 && len > maxKeys) {\n    len = maxKeys;\n  }\n\n  for (var i = 0; i < len; ++i) {\n    var x = qs[i].replace(regexp, '%20'),\n        idx = x.indexOf(eq),\n        kstr, vstr, k, v;\n\n    if (idx >= 0) {\n      kstr = x.substr(0, idx);\n      vstr = x.substr(idx + 1);\n    } else {\n      kstr = x;\n      vstr = '';\n    }\n\n    k = decodeURIComponent(kstr);\n    v = decodeURIComponent(vstr);\n\n    if (!hasOwnProperty(obj, k)) {\n      obj[k] = v;\n    } else if (isArray(obj[k])) {\n      obj[k].push(v);\n    } else {\n      obj[k] = [obj[k], v];\n    }\n  }\n\n  return obj;\n};\n\nvar isArray = Array.isArray || function (xs) {\n  return Object.prototype.toString.call(xs) === '[object Array]';\n};\n","var capability = require('./capability')\nvar inherits = require('inherits')\nvar response = require('./response')\nvar stream = require('readable-stream')\nvar toArrayBuffer = require('to-arraybuffer')\n\nvar IncomingMessage = response.IncomingMessage\nvar rStates = response.readyStates\n\nfunction decideMode (preferBinary, useFetch) {\n\tif (capability.fetch && useFetch) {\n\t\treturn 'fetch'\n\t} else if (capability.mozchunkedarraybuffer) {\n\t\treturn 'moz-chunked-arraybuffer'\n\t} else if (capability.msstream) {\n\t\treturn 'ms-stream'\n\t} else if (capability.arraybuffer && preferBinary) {\n\t\treturn 'arraybuffer'\n\t} else if (capability.vbArray && preferBinary) {\n\t\treturn 'text:vbarray'\n\t} else {\n\t\treturn 'text'\n\t}\n}\n\nvar ClientRequest = module.exports = function (opts) {\n\tvar self = this\n\tstream.Writable.call(self)\n\n\tself._opts = opts\n\tself._body = []\n\tself._headers = {}\n\tif (opts.auth)\n\t\tself.setHeader('Authorization', 'Basic ' + new Buffer(opts.auth).toString('base64'))\n\tObject.keys(opts.headers).forEach(function (name) {\n\t\tself.setHeader(name, opts.headers[name])\n\t})\n\n\tvar preferBinary\n\tvar useFetch = true\n\tif (opts.mode === 'disable-fetch' || ('requestTimeout' in opts && !capability.abortController)) {\n\t\t// If the use of XHR should be preferred. Not typically needed.\n\t\tuseFetch = false\n\t\tpreferBinary = true\n\t} else if (opts.mode === 'prefer-streaming') {\n\t\t// If streaming is a high priority but binary compatibility and\n\t\t// the accuracy of the 'content-type' header aren't\n\t\tpreferBinary = false\n\t} else if (opts.mode === 'allow-wrong-content-type') {\n\t\t// If streaming is more important than preserving the 'content-type' header\n\t\tpreferBinary = !capability.overrideMimeType\n\t} else if (!opts.mode || opts.mode === 'default' || opts.mode === 'prefer-fast') {\n\t\t// Use binary if text streaming may corrupt data or the content-type header, or for speed\n\t\tpreferBinary = true\n\t} else {\n\t\tthrow new Error('Invalid value for opts.mode')\n\t}\n\tself._mode = decideMode(preferBinary, useFetch)\n\tself._fetchTimer = null\n\n\tself.on('finish', function () {\n\t\tself._onFinish()\n\t})\n}\n\ninherits(ClientRequest, stream.Writable)\n\nClientRequest.prototype.setHeader = function (name, value) {\n\tvar self = this\n\tvar lowerName = name.toLowerCase()\n\t// This check is not necessary, but it prevents warnings from browsers about setting unsafe\n\t// headers. To be honest I'm not entirely sure hiding these warnings is a good thing, but\n\t// http-browserify did it, so I will too.\n\tif (unsafeHeaders.indexOf(lowerName) !== -1)\n\t\treturn\n\n\tself._headers[lowerName] = {\n\t\tname: name,\n\t\tvalue: value\n\t}\n}\n\nClientRequest.prototype.getHeader = function (name) {\n\tvar header = this._headers[name.toLowerCase()]\n\tif (header)\n\t\treturn header.value\n\treturn null\n}\n\nClientRequest.prototype.removeHeader = function (name) {\n\tvar self = this\n\tdelete self._headers[name.toLowerCase()]\n}\n\nClientRequest.prototype._onFinish = function () {\n\tvar self = this\n\n\tif (self._destroyed)\n\t\treturn\n\tvar opts = self._opts\n\n\tvar headersObj = self._headers\n\tvar body = null\n\tif (opts.method !== 'GET' && opts.method !== 'HEAD') {\n\t\tif (capability.arraybuffer) {\n\t\t\tbody = toArrayBuffer(Buffer.concat(self._body))\n\t\t} else if (capability.blobConstructor) {\n\t\t\tbody = new global.Blob(self._body.map(function (buffer) {\n\t\t\t\treturn toArrayBuffer(buffer)\n\t\t\t}), {\n\t\t\t\ttype: (headersObj['content-type'] || {}).value || ''\n\t\t\t})\n\t\t} else {\n\t\t\t// get utf8 string\n\t\t\tbody = Buffer.concat(self._body).toString()\n\t\t}\n\t}\n\n\t// create flattened list of headers\n\tvar headersList = []\n\tObject.keys(headersObj).forEach(function (keyName) {\n\t\tvar name = headersObj[keyName].name\n\t\tvar value = headersObj[keyName].value\n\t\tif (Array.isArray(value)) {\n\t\t\tvalue.forEach(function (v) {\n\t\t\t\theadersList.push([name, v])\n\t\t\t})\n\t\t} else {\n\t\t\theadersList.push([name, value])\n\t\t}\n\t})\n\n\tif (self._mode === 'fetch') {\n\t\tvar signal = null\n\t\tvar fetchTimer = null\n\t\tif (capability.abortController) {\n\t\t\tvar controller = new AbortController()\n\t\t\tsignal = controller.signal\n\t\t\tself._fetchAbortController = controller\n\n\t\t\tif ('requestTimeout' in opts && opts.requestTimeout !== 0) {\n\t\t\t\tself._fetchTimer = global.setTimeout(function () {\n\t\t\t\t\tself.emit('requestTimeout')\n\t\t\t\t\tif (self._fetchAbortController)\n\t\t\t\t\t\tself._fetchAbortController.abort()\n\t\t\t\t}, opts.requestTimeout)\n\t\t\t}\n\t\t}\n\n\t\tglobal.fetch(self._opts.url, {\n\t\t\tmethod: self._opts.method,\n\t\t\theaders: headersList,\n\t\t\tbody: body || undefined,\n\t\t\tmode: 'cors',\n\t\t\tcredentials: opts.withCredentials ? 'include' : 'same-origin',\n\t\t\tsignal: signal\n\t\t}).then(function (response) {\n\t\t\tself._fetchResponse = response\n\t\t\tself._connect()\n\t\t}, function (reason) {\n\t\t\tglobal.clearTimeout(self._fetchTimer)\n\t\t\tif (!self._destroyed)\n\t\t\t\tself.emit('error', reason)\n\t\t})\n\t} else {\n\t\tvar xhr = self._xhr = new global.XMLHttpRequest()\n\t\ttry {\n\t\t\txhr.open(self._opts.method, self._opts.url, true)\n\t\t} catch (err) {\n\t\t\tprocess.nextTick(function () {\n\t\t\t\tself.emit('error', err)\n\t\t\t})\n\t\t\treturn\n\t\t}\n\n\t\t// Can't set responseType on really old browsers\n\t\tif ('responseType' in xhr)\n\t\t\txhr.responseType = self._mode.split(':')[0]\n\n\t\tif ('withCredentials' in xhr)\n\t\t\txhr.withCredentials = !!opts.withCredentials\n\n\t\tif (self._mode === 'text' && 'overrideMimeType' in xhr)\n\t\t\txhr.overrideMimeType('text/plain; charset=x-user-defined')\n\n\t\tif ('requestTimeout' in opts) {\n\t\t\txhr.timeout = opts.requestTimeout\n\t\t\txhr.ontimeout = function () {\n\t\t\t\tself.emit('requestTimeout')\n\t\t\t}\n\t\t}\n\n\t\theadersList.forEach(function (header) {\n\t\t\txhr.setRequestHeader(header[0], header[1])\n\t\t})\n\n\t\tself._response = null\n\t\txhr.onreadystatechange = function () {\n\t\t\tswitch (xhr.readyState) {\n\t\t\t\tcase rStates.LOADING:\n\t\t\t\tcase rStates.DONE:\n\t\t\t\t\tself._onXHRProgress()\n\t\t\t\t\tbreak\n\t\t\t}\n\t\t}\n\t\t// Necessary for streaming in Firefox, since xhr.response is ONLY defined\n\t\t// in onprogress, not in onreadystatechange with xhr.readyState = 3\n\t\tif (self._mode === 'moz-chunked-arraybuffer') {\n\t\t\txhr.onprogress = function () {\n\t\t\t\tself._onXHRProgress()\n\t\t\t}\n\t\t}\n\n\t\txhr.onerror = function () {\n\t\t\tif (self._destroyed)\n\t\t\t\treturn\n\t\t\tself.emit('error', new Error('XHR error'))\n\t\t}\n\n\t\ttry {\n\t\t\txhr.send(body)\n\t\t} catch (err) {\n\t\t\tprocess.nextTick(function () {\n\t\t\t\tself.emit('error', err)\n\t\t\t})\n\t\t\treturn\n\t\t}\n\t}\n}\n\n/**\n * Checks if xhr.status is readable and non-zero, indicating no error.\n * Even though the spec says it should be available in readyState 3,\n * accessing it throws an exception in IE8\n */\nfunction statusValid (xhr) {\n\ttry {\n\t\tvar status = xhr.status\n\t\treturn (status !== null && status !== 0)\n\t} catch (e) {\n\t\treturn false\n\t}\n}\n\nClientRequest.prototype._onXHRProgress = function () {\n\tvar self = this\n\n\tif (!statusValid(self._xhr) || self._destroyed)\n\t\treturn\n\n\tif (!self._response)\n\t\tself._connect()\n\n\tself._response._onXHRProgress()\n}\n\nClientRequest.prototype._connect = function () {\n\tvar self = this\n\n\tif (self._destroyed)\n\t\treturn\n\n\tself._response = new IncomingMessage(self._xhr, self._fetchResponse, self._mode, self._fetchTimer)\n\tself._response.on('error', function(err) {\n\t\tself.emit('error', err)\n\t})\n\n\tself.emit('response', self._response)\n}\n\nClientRequest.prototype._write = function (chunk, encoding, cb) {\n\tvar self = this\n\n\tself._body.push(chunk)\n\tcb()\n}\n\nClientRequest.prototype.abort = ClientRequest.prototype.destroy = function () {\n\tvar self = this\n\tself._destroyed = true\n\tglobal.clearTimeout(self._fetchTimer)\n\tif (self._response)\n\t\tself._response._destroyed = true\n\tif (self._xhr)\n\t\tself._xhr.abort()\n\telse if (self._fetchAbortController)\n\t\tself._fetchAbortController.abort()\n}\n\nClientRequest.prototype.end = function (data, encoding, cb) {\n\tvar self = this\n\tif (typeof data === 'function') {\n\t\tcb = data\n\t\tdata = undefined\n\t}\n\n\tstream.Writable.prototype.end.call(self, data, encoding, cb)\n}\n\nClientRequest.prototype.flushHeaders = function () {}\nClientRequest.prototype.setTimeout = function () {}\nClientRequest.prototype.setNoDelay = function () {}\nClientRequest.prototype.setSocketKeepAlive = function () {}\n\n// Taken from http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader%28%29-method\nvar unsafeHeaders = [\n\t'accept-charset',\n\t'accept-encoding',\n\t'access-control-request-headers',\n\t'access-control-request-method',\n\t'connection',\n\t'content-length',\n\t'cookie',\n\t'cookie2',\n\t'date',\n\t'dnt',\n\t'expect',\n\t'host',\n\t'keep-alive',\n\t'origin',\n\t'referer',\n\t'te',\n\t'trailer',\n\t'transfer-encoding',\n\t'upgrade',\n\t'via'\n]\n","var ClientRequest = require('./lib/request')\nvar response = require('./lib/response')\nvar extend = require('xtend')\nvar statusCodes = require('builtin-status-codes')\nvar url = require('url')\n\nvar http = exports\n\nhttp.request = function (opts, cb) {\n\tif (typeof opts === 'string')\n\t\topts = url.parse(opts)\n\telse\n\t\topts = extend(opts)\n\n\t// Normally, the page is loaded from http or https, so not specifying a protocol\n\t// will result in a (valid) protocol-relative url. However, this won't work if\n\t// the protocol is something else, like 'file:'\n\tvar defaultProtocol = global.location.protocol.search(/^https?:$/) === -1 ? 'http:' : ''\n\n\tvar protocol = opts.protocol || defaultProtocol\n\tvar host = opts.hostname || opts.host\n\tvar port = opts.port\n\tvar path = opts.path || '/'\n\n\t// Necessary for IPv6 addresses\n\tif (host && host.indexOf(':') !== -1)\n\t\thost = '[' + host + ']'\n\n\t// This may be a relative url. The browser should always be able to interpret it correctly.\n\topts.url = (host ? (protocol + '//' + host) : '') + (port ? ':' + port : '') + path\n\topts.method = (opts.method || 'GET').toUpperCase()\n\topts.headers = opts.headers || {}\n\n\t// Also valid opts.auth, opts.mode\n\n\tvar req = new ClientRequest(opts)\n\tif (cb)\n\t\treq.on('response', cb)\n\treturn req\n}\n\nhttp.get = function get (opts, cb) {\n\tvar req = http.request(opts, cb)\n\treq.end()\n\treturn req\n}\n\nhttp.ClientRequest = ClientRequest\nhttp.IncomingMessage = response.IncomingMessage\n\nhttp.Agent = function () {}\nhttp.Agent.defaultMaxSockets = 4\n\nhttp.globalAgent = new http.Agent()\n\nhttp.STATUS_CODES = statusCodes\n\nhttp.METHODS = [\n\t'CHECKOUT',\n\t'CONNECT',\n\t'COPY',\n\t'DELETE',\n\t'GET',\n\t'HEAD',\n\t'LOCK',\n\t'M-SEARCH',\n\t'MERGE',\n\t'MKACTIVITY',\n\t'MKCOL',\n\t'MOVE',\n\t'NOTIFY',\n\t'OPTIONS',\n\t'PATCH',\n\t'POST',\n\t'PROPFIND',\n\t'PROPPATCH',\n\t'PURGE',\n\t'PUT',\n\t'REPORT',\n\t'SEARCH',\n\t'SUBSCRIBE',\n\t'TRACE',\n\t'UNLOCK',\n\t'UNSUBSCRIBE'\n]","// all object keys, includes non-enumerable and symbols\nvar gOPN = require('./_object-gopn');\nvar gOPS = require('./_object-gops');\nvar anObject = require('./_an-object');\nvar Reflect = require('./_global').Reflect;\nmodule.exports = Reflect && Reflect.ownKeys || function ownKeys(it) {\n  var keys = gOPN.f(anObject(it));\n  var getSymbols = gOPS.f;\n  return getSymbols ? keys.concat(getSymbols(it)) : keys;\n};\n","exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableStream)\n\nexports.writableStream = isFunction(global.WritableStream)\n\nexports.abortController = isFunction(global.AbortController)\n\nexports.blobConstructor = false\ntry {\n\tnew Blob([new ArrayBuffer(1)])\n\texports.blobConstructor = true\n} catch (e) {}\n\n// The xhr request to example.com may violate some restrictive CSP configurations,\n// so if we're running in a browser that supports `fetch`, avoid calling getXHR()\n// and assume support for certain features below.\nvar xhr\nfunction getXHR () {\n\t// Cache the xhr value\n\tif (xhr !== undefined) return xhr\n\n\tif (global.XMLHttpRequest) {\n\t\txhr = new global.XMLHttpRequest()\n\t\t// If XDomainRequest is available (ie only, where xhr might not work\n\t\t// cross domain), use the page location. Otherwise use example.com\n\t\t// Note: this doesn't actually make an http request.\n\t\ttry {\n\t\t\txhr.open('GET', global.XDomainRequest ? '/' : 'https://example.com')\n\t\t} catch(e) {\n\t\t\txhr = null\n\t\t}\n\t} else {\n\t\t// Service workers don't have XHR\n\t\txhr = null\n\t}\n\treturn xhr\n}\n\nfunction checkTypeSupport (type) {\n\tvar xhr = getXHR()\n\tif (!xhr) return false\n\ttry {\n\t\txhr.responseType = type\n\t\treturn xhr.responseType === type\n\t} catch (e) {}\n\treturn false\n}\n\n// For some strange reason, Safari 7.0 reports typeof global.ArrayBuffer === 'object'.\n// Safari 7.1 appears to have fixed this bug.\nvar haveArrayBuffer = typeof global.ArrayBuffer !== 'undefined'\nvar haveSlice = haveArrayBuffer && isFunction(global.ArrayBuffer.prototype.slice)\n\n// If fetch is supported, then arraybuffer will be supported too. Skip calling\n// checkTypeSupport(), since that calls getXHR().\nexports.arraybuffer = exports.fetch || (haveArrayBuffer && checkTypeSupport('arraybuffer'))\n\n// These next two tests unavoidably show warnings in Chrome. Since fetch will always\n// be used if it's available, just return false for these to avoid the warnings.\nexports.msstream = !exports.fetch && haveSlice && checkTypeSupport('ms-stream')\nexports.mozchunkedarraybuffer = !exports.fetch && haveArrayBuffer &&\n\tcheckTypeSupport('moz-chunked-arraybuffer')\n\n// If fetch is supported, then overrideMimeType will be supported too. Skip calling\n// getXHR().\nexports.overrideMimeType = exports.fetch || (getXHR() ? isFunction(getXHR().overrideMimeType) : false)\n\nexports.vbArray = isFunction(global.VBArray)\n\nfunction isFunction (value) {\n\treturn typeof value === 'function'\n}\n\nxhr = null // Help gc\n","'use strict';\n\nexports.decode = exports.parse = require('./decode');\nexports.encode = exports.stringify = require('./encode');\n","var capability = require('./capability')\nvar inherits = require('inherits')\nvar stream = require('readable-stream')\n\nvar rStates = exports.readyStates = {\n\tUNSENT: 0,\n\tOPENED: 1,\n\tHEADERS_RECEIVED: 2,\n\tLOADING: 3,\n\tDONE: 4\n}\n\nvar IncomingMessage = exports.IncomingMessage = function (xhr, response, mode, fetchTimer) {\n\tvar self = this\n\tstream.Readable.call(self)\n\n\tself._mode = mode\n\tself.headers = {}\n\tself.rawHeaders = []\n\tself.trailers = {}\n\tself.rawTrailers = []\n\n\t// Fake the 'close' event, but only once 'end' fires\n\tself.on('end', function () {\n\t\t// The nextTick is necessary to prevent the 'request' module from causing an infinite loop\n\t\tprocess.nextTick(function () {\n\t\t\tself.emit('close')\n\t\t})\n\t})\n\n\tif (mode === 'fetch') {\n\t\tself._fetchResponse = response\n\n\t\tself.url = response.url\n\t\tself.statusCode = response.status\n\t\tself.statusMessage = response.statusText\n\t\t\n\t\tresponse.headers.forEach(function (header, key){\n\t\t\tself.headers[key.toLowerCase()] = header\n\t\t\tself.rawHeaders.push(key, header)\n\t\t})\n\n\t\tif (capability.writableStream) {\n\t\t\tvar writable = new WritableStream({\n\t\t\t\twrite: function (chunk) {\n\t\t\t\t\treturn new Promise(function (resolve, reject) {\n\t\t\t\t\t\tif (self._destroyed) {\n\t\t\t\t\t\t\treject()\n\t\t\t\t\t\t} else if(self.push(new Buffer(chunk))) {\n\t\t\t\t\t\t\tresolve()\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tself._resumeFetch = resolve\n\t\t\t\t\t\t}\n\t\t\t\t\t})\n\t\t\t\t},\n\t\t\t\tclose: function () {\n\t\t\t\t\tglobal.clearTimeout(fetchTimer)\n\t\t\t\t\tif (!self._destroyed)\n\t\t\t\t\t\tself.push(null)\n\t\t\t\t},\n\t\t\t\tabort: function (err) {\n\t\t\t\t\tif (!self._destroyed)\n\t\t\t\t\t\tself.emit('error', err)\n\t\t\t\t}\n\t\t\t})\n\n\t\t\ttry {\n\t\t\t\tresponse.body.pipeTo(writable).catch(function (err) {\n\t\t\t\t\tglobal.clearTimeout(fetchTimer)\n\t\t\t\t\tif (!self._destroyed)\n\t\t\t\t\t\tself.emit('error', err)\n\t\t\t\t})\n\t\t\t\treturn\n\t\t\t} catch (e) {} // pipeTo method isn't defined. Can't find a better way to feature test this\n\t\t}\n\t\t// fallback for when writableStream or pipeTo aren't available\n\t\tvar reader = response.body.getReader()\n\t\tfunction read () {\n\t\t\treader.read().then(function (result) {\n\t\t\t\tif (self._destroyed)\n\t\t\t\t\treturn\n\t\t\t\tif (result.done) {\n\t\t\t\t\tglobal.clearTimeout(fetchTimer)\n\t\t\t\t\tself.push(null)\n\t\t\t\t\treturn\n\t\t\t\t}\n\t\t\t\tself.push(new Buffer(result.value))\n\t\t\t\tread()\n\t\t\t}).catch(function (err) {\n\t\t\t\tglobal.clearTimeout(fetchTimer)\n\t\t\t\tif (!self._destroyed)\n\t\t\t\t\tself.emit('error', err)\n\t\t\t})\n\t\t}\n\t\tread()\n\t} else {\n\t\tself._xhr = xhr\n\t\tself._pos = 0\n\n\t\tself.url = xhr.responseURL\n\t\tself.statusCode = xhr.status\n\t\tself.statusMessage = xhr.statusText\n\t\tvar headers = xhr.getAllResponseHeaders().split(/\\r?\\n/)\n\t\theaders.forEach(function (header) {\n\t\t\tvar matches = header.match(/^([^:]+):\\s*(.*)/)\n\t\t\tif (matches) {\n\t\t\t\tvar key = matches[1].toLowerCase()\n\t\t\t\tif (key === 'set-cookie') {\n\t\t\t\t\tif (self.headers[key] === undefined) {\n\t\t\t\t\t\tself.headers[key] = []\n\t\t\t\t\t}\n\t\t\t\t\tself.headers[key].push(matches[2])\n\t\t\t\t} else if (self.headers[key] !== undefined) {\n\t\t\t\t\tself.headers[key] += ', ' + matches[2]\n\t\t\t\t} else {\n\t\t\t\t\tself.headers[key] = matches[2]\n\t\t\t\t}\n\t\t\t\tself.rawHeaders.push(matches[1], matches[2])\n\t\t\t}\n\t\t})\n\n\t\tself._charset = 'x-user-defined'\n\t\tif (!capability.overrideMimeType) {\n\t\t\tvar mimeType = self.rawHeaders['mime-type']\n\t\t\tif (mimeType) {\n\t\t\t\tvar charsetMatch = mimeType.match(/;\\s*charset=([^;])(;|$)/)\n\t\t\t\tif (charsetMatch) {\n\t\t\t\t\tself._charset = charsetMatch[1].toLowerCase()\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (!self._charset)\n\t\t\t\tself._charset = 'utf-8' // best guess\n\t\t}\n\t}\n}\n\ninherits(IncomingMessage, stream.Readable)\n\nIncomingMessage.prototype._read = function () {\n\tvar self = this\n\n\tvar resolve = self._resumeFetch\n\tif (resolve) {\n\t\tself._resumeFetch = null\n\t\tresolve()\n\t}\n}\n\nIncomingMessage.prototype._onXHRProgress = function () {\n\tvar self = this\n\n\tvar xhr = self._xhr\n\n\tvar response = null\n\tswitch (self._mode) {\n\t\tcase 'text:vbarray': // For IE9\n\t\t\tif (xhr.readyState !== rStates.DONE)\n\t\t\t\tbreak\n\t\t\ttry {\n\t\t\t\t// This fails in IE8\n\t\t\t\tresponse = new global.VBArray(xhr.responseBody).toArray()\n\t\t\t} catch (e) {}\n\t\t\tif (response !== null) {\n\t\t\t\tself.push(new Buffer(response))\n\t\t\t\tbreak\n\t\t\t}\n\t\t\t// Falls through in IE8\t\n\t\tcase 'text':\n\t\t\ttry { // This will fail when readyState = 3 in IE9. Switch mode and wait for readyState = 4\n\t\t\t\tresponse = xhr.responseText\n\t\t\t} catch (e) {\n\t\t\t\tself._mode = 'text:vbarray'\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tif (response.length > self._pos) {\n\t\t\t\tvar newData = response.substr(self._pos)\n\t\t\t\tif (self._charset === 'x-user-defined') {\n\t\t\t\t\tvar buffer = new Buffer(newData.length)\n\t\t\t\t\tfor (var i = 0; i < newData.length; i++)\n\t\t\t\t\t\tbuffer[i] = newData.charCodeAt(i) & 0xff\n\n\t\t\t\t\tself.push(buffer)\n\t\t\t\t} else {\n\t\t\t\t\tself.push(newData, self._charset)\n\t\t\t\t}\n\t\t\t\tself._pos = response.length\n\t\t\t}\n\t\t\tbreak\n\t\tcase 'arraybuffer':\n\t\t\tif (xhr.readyState !== rStates.DONE || !xhr.response)\n\t\t\t\tbreak\n\t\t\tresponse = xhr.response\n\t\t\tself.push(new Buffer(new Uint8Array(response)))\n\t\t\tbreak\n\t\tcase 'moz-chunked-arraybuffer': // take whole\n\t\t\tresponse = xhr.response\n\t\t\tif (xhr.readyState !== rStates.LOADING || !response)\n\t\t\t\tbreak\n\t\t\tself.push(new Buffer(new Uint8Array(response)))\n\t\t\tbreak\n\t\tcase 'ms-stream':\n\t\t\tresponse = xhr.response\n\t\t\tif (xhr.readyState !== rStates.LOADING)\n\t\t\t\tbreak\n\t\t\tvar reader = new global.MSStreamReader()\n\t\t\treader.onprogress = function () {\n\t\t\t\tif (reader.result.byteLength > self._pos) {\n\t\t\t\t\tself.push(new Buffer(new Uint8Array(reader.result.slice(self._pos))))\n\t\t\t\t\tself._pos = reader.result.byteLength\n\t\t\t\t}\n\t\t\t}\n\t\t\treader.onload = function () {\n\t\t\t\tself.push(null)\n\t\t\t}\n\t\t\t// reader.onerror = ??? // TODO: this\n\t\t\treader.readAsArrayBuffer(response)\n\t\t\tbreak\n\t}\n\n\t// The ms-stream case handles end separately in reader.onload()\n\tif (self._xhr.readyState === rStates.DONE && self._mode !== 'ms-stream') {\n\t\tself.push(null)\n\t}\n}\n","var Buffer = require('buffer').Buffer\n\nmodule.exports = function (buf) {\n\t// If the buffer is backed by a Uint8Array, a faster version will work\n\tif (buf instanceof Uint8Array) {\n\t\t// If the buffer isn't a subarray, return the underlying ArrayBuffer\n\t\tif (buf.byteOffset === 0 && buf.byteLength === buf.buffer.byteLength) {\n\t\t\treturn buf.buffer\n\t\t} else if (typeof buf.buffer.slice === 'function') {\n\t\t\t// Otherwise we need to get a proper copy\n\t\t\treturn buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength)\n\t\t}\n\t}\n\n\tif (Buffer.isBuffer(buf)) {\n\t\t// This is the slow version that will work with any Buffer\n\t\t// implementation (even in old browsers)\n\t\tvar arrayCopy = new Uint8Array(buf.length)\n\t\tvar len = buf.length\n\t\tfor (var i = 0; i < len; i++) {\n\t\t\tarrayCopy[i] = buf[i]\n\t\t}\n\t\treturn arrayCopy.buffer\n\t} else {\n\t\tthrow new Error('Argument must be a Buffer')\n\t}\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar stringifyPrimitive = function(v) {\n  switch (typeof v) {\n    case 'string':\n      return v;\n\n    case 'boolean':\n      return v ? 'true' : 'false';\n\n    case 'number':\n      return isFinite(v) ? v : '';\n\n    default:\n      return '';\n  }\n};\n\nmodule.exports = function(obj, sep, eq, name) {\n  sep = sep || '&';\n  eq = eq || '=';\n  if (obj === null) {\n    obj = undefined;\n  }\n\n  if (typeof obj === 'object') {\n    return map(objectKeys(obj), function(k) {\n      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;\n      if (isArray(obj[k])) {\n        return map(obj[k], function(v) {\n          return ks + encodeURIComponent(stringifyPrimitive(v));\n        }).join(sep);\n      } else {\n        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));\n      }\n    }).join(sep);\n\n  }\n\n  if (!name) return '';\n  return encodeURIComponent(stringifyPrimitive(name)) + eq +\n         encodeURIComponent(stringifyPrimitive(obj));\n};\n\nvar isArray = Array.isArray || function (xs) {\n  return Object.prototype.toString.call(xs) === '[object Array]';\n};\n\nfunction map (xs, f) {\n  if (xs.map) return xs.map(f);\n  var res = [];\n  for (var i = 0; i < xs.length; i++) {\n    res.push(f(xs[i], i));\n  }\n  return res;\n}\n\nvar objectKeys = Object.keys || function (obj) {\n  var res = [];\n  for (var key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);\n  }\n  return res;\n};\n","'use strict';\nvar $defineProperty = require('./_object-dp');\nvar createDesc = require('./_property-desc');\n\nmodule.exports = function (object, index, value) {\n  if (index in object) $defineProperty.f(object, index, createDesc(0, value));\n  else object[index] = value;\n};\n"],"sourceRoot":""}