initial commit

node_modules/stream-http/LICENSE

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+The MIT License
+
+Copyright (c) 2015 John Hiesey
+
+Permission is hereby granted, free of charge, 
+to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to 
+deal in the Software without restriction, including 
+without limitation the rights to use, copy, modify, 
+merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom 
+the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice 
+shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/stream-http/README.md

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+# stream-http [![Build Status](https://travis-ci.org/jhiesey/stream-http.svg?branch=master)](https://travis-ci.org/jhiesey/stream-http)
+
+[![Sauce Test Status](https://app.saucelabs.com/browser-matrix/stream-http.svg)](https://app.saucelabs.com/u/stream-http)
+
+This module is an implementation of Node's native `http` module for the browser.
+It tries to match Node's API and behavior as closely as possible, but some features
+aren't available, since browsers don't give nearly as much control over requests.
+
+This is heavily inspired by, and intended to replace, [http-browserify](https://github.com/substack/http-browserify).
+
+## What does it do?
+
+In accordance with its name, `stream-http` tries to provide data to its caller before
+the request has completed whenever possible.
+
+Backpressure, allowing the browser to only pull data from the server as fast as it is
+consumed, is supported in:
+* Chrome >= 58 (using `fetch` and `WritableStream`)
+
+The following browsers support true streaming, where only a small amount of the request
+has to be held in memory at once:
+* Chrome >= 43 (using the `fetch` API)
+* Firefox >= 9 (using `moz-chunked-arraybuffer` responseType with xhr)
+
+All other supported browsers support pseudo-streaming, where the data is available before
+the request finishes, but the entire response must be held in memory. This works for both
+text and binary data.
+
+### IE note:
+As of version 3.0.0, IE10 and below are no longer supported. IE11 support will remain for
+now.
+
+## How do you use it?
+
+The intent is to have the same API as the client part of the
+[Node HTTP module](https://nodejs.org/api/http.html). The interfaces are the same wherever
+practical, although limitations in browsers make an exact clone of the Node API impossible.
+
+This module implements `http.request`, `http.get`, and most of `http.ClientRequest`
+and `http.IncomingMessage` in addition to `http.METHODS` and `http.STATUS_CODES`. See the
+Node docs for how these work.
+
+### Extra features compared to Node
+
+* The `message.url` property provides access to the final URL after all redirects. This
+is useful since the browser follows all redirects silently, unlike Node. It is available
+in Chrome 37 and newer, Firefox 32 and newer, and Safari 9 and newer.
+
+* The `options.withCredentials` boolean flag, used to indicate if the browser should send
+cookies or authentication information with a CORS request. Default false.
+
+This module has to make some tradeoffs to support binary data and/or streaming. Generally,
+the module can make a fairly good decision about which underlying browser features to use,
+but sometimes it helps to get a little input from the developer.
+
+* The `options.mode` field passed into `http.request` or `http.get` can take on one of the
+following values:
+  * 'default' (or any falsy value, including `undefined`): Try to provide partial data before
+the request completes, but not at the cost of correctness for binary data or correctness of
+the 'content-type' response header. This mode will also avoid slower code paths whenever
+possible, which is particularly useful when making large requests in a browser like Safari
+that has a weaker JavaScript engine.
+  * 'allow-wrong-content-type': Provides partial data in more cases than 'default', but
+at the expense of causing the 'content-type' response header to be incorrectly reported
+(as 'text/plain; charset=x-user-defined') in some browsers, notably Safari and Chrome 42
+and older. Preserves binary data whenever possible. In some cases the implementation may
+also be a bit slow. This was the default in versions of this module before 1.5.
+  * 'prefer-streaming': Provide data before the request completes even if binary data (anything
+that isn't a single-byte ASCII or UTF8 character) will be corrupted. Of course, this option
+is only safe for text data. May also cause the 'content-type' response header to be
+incorrectly reported (as 'text/plain; charset=x-user-defined').
+  * 'disable-fetch': Force the use of plain XHR regardless of the browser declaring a fetch
+capability. Preserves the correctness of binary data and the 'content-type' response header.
+  * 'prefer-fast': Deprecated; now a synonym for 'default', which has the same performance
+characteristics as this mode did in versions before 1.5.
+
+* `options.requestTimeout` allows setting a timeout in millisecionds for XHR and fetch (if
+supported by the browser). This is a limit on how long the entire process takes from
+beginning to end. Note that this is not the same as the node `setTimeout` functions,
+which apply to pauses in data transfer over the underlying socket, or the node `timeout`
+option, which applies to opening the connection.
+
+### Features missing compared to Node
+
+* `http.Agent` is only a stub
+* The 'socket', 'connect', 'upgrade', and 'continue' events on `http.ClientRequest`.
+* Any operations, other than `request.setTimeout`, that operate directly on the underlying
+socket.
+* Any options that are disallowed for security reasons. This includes setting or getting
+certain headers.
+* `message.httpVersion`
+* `message.rawHeaders` is modified by the browser, and may not quite match what is sent by
+the server.
+* `message.trailers` and `message.rawTrailers` will remain empty.
+* Redirects are followed silently by the browser, so it isn't possible to access the 301/302
+redirect pages.
+
+## Example
+
+``` js
+http.get('/bundle.js', function (res) {
+	var div = document.getElementById('result');
+	div.innerHTML += 'GET /beep<br>';
+
+	res.on('data', function (buf) {
+		div.innerHTML += buf;
+	});
+
+	res.on('end', function () {
+		div.innerHTML += '<br>__END__';
+	});
+})
+```
+
+## Running tests
+
+There are two sets of tests: the tests that run in Node (found in `test/node`) and the tests
+that run in the browser (found in `test/browser`). Normally the browser tests run on
+[Sauce Labs](http://saucelabs.com/).
+
+Running `npm test` will run both sets of tests, but in order for the Sauce Labs tests to run
+you will need to sign up for an account (free for open source projects) and put the
+credentials in a [`.airtaprc` file](https://github.com/airtap/airtap/blob/master/doc/airtaprc.md).
+You will also need to run a [Sauce Connect Proxy](https://wiki.saucelabs.com/display/DOCS/Sauce+Connect+Proxy)
+with the same credentials.
+
+To run just the Node tests, run `npm run test-node`.
+
+To run the browser tests locally, run `npm run test-browser-local` and point your browser to
+the link shown in your terminal.
+
+## License
+
+MIT. Copyright (C) John Hiesey and other contributors.

node_modules/stream-http/index.js

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+var ClientRequest = require('./lib/request')
+var response = require('./lib/response')
+var extend = require('xtend')
+var statusCodes = require('builtin-status-codes')
+var url = require('url')
+
+var http = exports
+
+http.request = function (opts, cb) {
+	if (typeof opts === 'string')
+		opts = url.parse(opts)
+	else
+		opts = extend(opts)
+
+	// Normally, the page is loaded from http or https, so not specifying a protocol
+	// will result in a (valid) protocol-relative url. However, this won't work if
+	// the protocol is something else, like 'file:'
+	var defaultProtocol = global.location.protocol.search(/^https?:$/) === -1 ? 'http:' : ''
+
+	var protocol = opts.protocol || defaultProtocol
+	var host = opts.hostname || opts.host
+	var port = opts.port
+	var path = opts.path || '/'
+
+	// Necessary for IPv6 addresses
+	if (host && host.indexOf(':') !== -1)
+		host = '[' + host + ']'
+
+	// This may be a relative url. The browser should always be able to interpret it correctly.
+	opts.url = (host ? (protocol + '//' + host) : '') + (port ? ':' + port : '') + path
+	opts.method = (opts.method || 'GET').toUpperCase()
+	opts.headers = opts.headers || {}
+
+	// Also valid opts.auth, opts.mode
+
+	var req = new ClientRequest(opts)
+	if (cb)
+		req.on('response', cb)
+	return req
+}
+
+http.get = function get (opts, cb) {
+	var req = http.request(opts, cb)
+	req.end()
+	return req
+}
+
+http.ClientRequest = ClientRequest
+http.IncomingMessage = response.IncomingMessage
+
+http.Agent = function () {}
+http.Agent.defaultMaxSockets = 4
+
+http.globalAgent = new http.Agent()
+
+http.STATUS_CODES = statusCodes
+
+http.METHODS = [
+	'CHECKOUT',
+	'CONNECT',
+	'COPY',
+	'DELETE',
+	'GET',
+	'HEAD',
+	'LOCK',
+	'M-SEARCH',
+	'MERGE',
+	'MKACTIVITY',
+	'MKCOL',
+	'MOVE',
+	'NOTIFY',
+	'OPTIONS',
+	'PATCH',
+	'POST',
+	'PROPFIND',
+	'PROPPATCH',
+	'PURGE',
+	'PUT',
+	'REPORT',
+	'SEARCH',
+	'SUBSCRIBE',
+	'TRACE',
+	'UNLOCK',
+	'UNSUBSCRIBE'
+]

node_modules/stream-http/lib/capability.js

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+exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableStream)
+
+exports.writableStream = isFunction(global.WritableStream)
+
+exports.abortController = isFunction(global.AbortController)
+
+// The xhr request to example.com may violate some restrictive CSP configurations,
+// so if we're running in a browser that supports `fetch`, avoid calling getXHR()
+// and assume support for certain features below.
+var xhr
+function getXHR () {
+	// Cache the xhr value
+	if (xhr !== undefined) return xhr
+
+	if (global.XMLHttpRequest) {
+		xhr = new global.XMLHttpRequest()
+		// If XDomainRequest is available (ie only, where xhr might not work
+		// cross domain), use the page location. Otherwise use example.com
+		// Note: this doesn't actually make an http request.
+		try {
+			xhr.open('GET', global.XDomainRequest ? '/' : 'https://example.com')
+		} catch(e) {
+			xhr = null
+		}
+	} else {
+		// Service workers don't have XHR
+		xhr = null
+	}
+	return xhr
+}
+
+function checkTypeSupport (type) {
+	var xhr = getXHR()
+	if (!xhr) return false
+	try {
+		xhr.responseType = type
+		return xhr.responseType === type
+	} catch (e) {}
+	return false
+}
+
+// If fetch is supported, then arraybuffer will be supported too. Skip calling
+// checkTypeSupport(), since that calls getXHR().
+exports.arraybuffer = exports.fetch || checkTypeSupport('arraybuffer')
+
+// These next two tests unavoidably show warnings in Chrome. Since fetch will always
+// be used if it's available, just return false for these to avoid the warnings.
+exports.msstream = !exports.fetch && checkTypeSupport('ms-stream')
+exports.mozchunkedarraybuffer = !exports.fetch && checkTypeSupport('moz-chunked-arraybuffer')
+
+// If fetch is supported, then overrideMimeType will be supported too. Skip calling
+// getXHR().
+exports.overrideMimeType = exports.fetch || (getXHR() ? isFunction(getXHR().overrideMimeType) : false)
+
+function isFunction (value) {
+	return typeof value === 'function'
+}
+
+xhr = null // Help gc

node_modules/stream-http/lib/request.js

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+var capability = require('./capability')
+var inherits = require('inherits')
+var response = require('./response')
+var stream = require('readable-stream')
+
+var IncomingMessage = response.IncomingMessage
+var rStates = response.readyStates
+
+function decideMode (preferBinary, useFetch) {
+	if (capability.fetch && useFetch) {
+		return 'fetch'
+	} else if (capability.mozchunkedarraybuffer) {
+		return 'moz-chunked-arraybuffer'
+	} else if (capability.msstream) {
+		return 'ms-stream'
+	} else if (capability.arraybuffer && preferBinary) {
+		return 'arraybuffer'
+	} else {
+		return 'text'
+	}
+}
+
+var ClientRequest = module.exports = function (opts) {
+	var self = this
+	stream.Writable.call(self)
+
+	self._opts = opts
+	self._body = []
+	self._headers = {}
+	if (opts.auth)
+		self.setHeader('Authorization', 'Basic ' + Buffer.from(opts.auth).toString('base64'))
+	Object.keys(opts.headers).forEach(function (name) {
+		self.setHeader(name, opts.headers[name])
+	})
+
+	var preferBinary
+	var useFetch = true
+	if (opts.mode === 'disable-fetch' || ('requestTimeout' in opts && !capability.abortController)) {
+		// If the use of XHR should be preferred. Not typically needed.
+		useFetch = false
+		preferBinary = true
+	} else if (opts.mode === 'prefer-streaming') {
+		// If streaming is a high priority but binary compatibility and
+		// the accuracy of the 'content-type' header aren't
+		preferBinary = false
+	} else if (opts.mode === 'allow-wrong-content-type') {
+		// If streaming is more important than preserving the 'content-type' header
+		preferBinary = !capability.overrideMimeType
+	} else if (!opts.mode || opts.mode === 'default' || opts.mode === 'prefer-fast') {
+		// Use binary if text streaming may corrupt data or the content-type header, or for speed
+		preferBinary = true
+	} else {
+		throw new Error('Invalid value for opts.mode')
+	}
+	self._mode = decideMode(preferBinary, useFetch)
+	self._fetchTimer = null
+	self._socketTimeout = null
+	self._socketTimer = null
+
+	self.on('finish', function () {
+		self._onFinish()
+	})
+}
+
+inherits(ClientRequest, stream.Writable)
+
+ClientRequest.prototype.setHeader = function (name, value) {
+	var self = this
+	var lowerName = name.toLowerCase()
+	// This check is not necessary, but it prevents warnings from browsers about setting unsafe
+	// headers. To be honest I'm not entirely sure hiding these warnings is a good thing, but
+	// http-browserify did it, so I will too.
+	if (unsafeHeaders.indexOf(lowerName) !== -1)
+		return
+
+	self._headers[lowerName] = {
+		name: name,
+		value: value
+	}
+}
+
+ClientRequest.prototype.getHeader = function (name) {
+	var header = this._headers[name.toLowerCase()]
+	if (header)
+		return header.value
+	return null
+}
+
+ClientRequest.prototype.removeHeader = function (name) {
+	var self = this
+	delete self._headers[name.toLowerCase()]
+}
+
+ClientRequest.prototype._onFinish = function () {
+	var self = this
+
+	if (self._destroyed)
+		return
+	var opts = self._opts
+
+	if ('timeout' in opts && opts.timeout !== 0) {
+		self.setTimeout(opts.timeout)
+	}
+
+	var headersObj = self._headers
+	var body = null
+	if (opts.method !== 'GET' && opts.method !== 'HEAD') {
+        body = new Blob(self._body, {
+            type: (headersObj['content-type'] || {}).value || ''
+        });
+    }
+
+	// create flattened list of headers
+	var headersList = []
+	Object.keys(headersObj).forEach(function (keyName) {
+		var name = headersObj[keyName].name
+		var value = headersObj[keyName].value
+		if (Array.isArray(value)) {
+			value.forEach(function (v) {
+				headersList.push([name, v])
+			})
+		} else {
+			headersList.push([name, value])
+		}
+	})
+
+	if (self._mode === 'fetch') {
+		var signal = null
+		if (capability.abortController) {
+			var controller = new AbortController()
+			signal = controller.signal
+			self._fetchAbortController = controller
+
+			if ('requestTimeout' in opts && opts.requestTimeout !== 0) {
+				self._fetchTimer = global.setTimeout(function () {
+					self.emit('requestTimeout')
+					if (self._fetchAbortController)
+						self._fetchAbortController.abort()
+				}, opts.requestTimeout)
+			}
+		}
+
+		global.fetch(self._opts.url, {
+			method: self._opts.method,
+			headers: headersList,
+			body: body || undefined,
+			mode: 'cors',
+			credentials: opts.withCredentials ? 'include' : 'same-origin',
+			signal: signal
+		}).then(function (response) {
+			self._fetchResponse = response
+			self._resetTimers(false)
+			self._connect()
+		}, function (reason) {
+			self._resetTimers(true)
+			if (!self._destroyed)
+				self.emit('error', reason)
+		})
+	} else {
+		var xhr = self._xhr = new global.XMLHttpRequest()
+		try {
+			xhr.open(self._opts.method, self._opts.url, true)
+		} catch (err) {
+			process.nextTick(function () {
+				self.emit('error', err)
+			})
+			return
+		}
+
+		// Can't set responseType on really old browsers
+		if ('responseType' in xhr)
+			xhr.responseType = self._mode
+
+		if ('withCredentials' in xhr)
+			xhr.withCredentials = !!opts.withCredentials
+
+		if (self._mode === 'text' && 'overrideMimeType' in xhr)
+			xhr.overrideMimeType('text/plain; charset=x-user-defined')
+
+		if ('requestTimeout' in opts) {
+			xhr.timeout = opts.requestTimeout
+			xhr.ontimeout = function () {
+				self.emit('requestTimeout')
+			}
+		}
+
+		headersList.forEach(function (header) {
+			xhr.setRequestHeader(header[0], header[1])
+		})
+
+		self._response = null
+		xhr.onreadystatechange = function () {
+			switch (xhr.readyState) {
+				case rStates.LOADING:
+				case rStates.DONE:
+					self._onXHRProgress()
+					break
+			}
+		}
+		// Necessary for streaming in Firefox, since xhr.response is ONLY defined
+		// in onprogress, not in onreadystatechange with xhr.readyState = 3
+		if (self._mode === 'moz-chunked-arraybuffer') {
+			xhr.onprogress = function () {
+				self._onXHRProgress()
+			}
+		}
+
+		xhr.onerror = function () {
+			if (self._destroyed)
+				return
+			self._resetTimers(true)
+			self.emit('error', new Error('XHR error'))
+		}
+
+		try {
+			xhr.send(body)
+		} catch (err) {
+			process.nextTick(function () {
+				self.emit('error', err)
+			})
+			return
+		}
+	}
+}
+
+/**
+ * Checks if xhr.status is readable and non-zero, indicating no error.
+ * Even though the spec says it should be available in readyState 3,
+ * accessing it throws an exception in IE8
+ */
+function statusValid (xhr) {
+	try {
+		var status = xhr.status
+		return (status !== null && status !== 0)
+	} catch (e) {
+		return false
+	}
+}
+
+ClientRequest.prototype._onXHRProgress = function () {
+	var self = this
+
+	self._resetTimers(false)
+
+	if (!statusValid(self._xhr) || self._destroyed)
+		return
+
+	if (!self._response)
+		self._connect()
+
+	self._response._onXHRProgress(self._resetTimers.bind(self))
+}
+
+ClientRequest.prototype._connect = function () {
+	var self = this
+
+	if (self._destroyed)
+		return
+
+	self._response = new IncomingMessage(self._xhr, self._fetchResponse, self._mode, self._resetTimers.bind(self))
+	self._response.on('error', function(err) {
+		self.emit('error', err)
+	})
+
+	self.emit('response', self._response)
+}
+
+ClientRequest.prototype._write = function (chunk, encoding, cb) {
+	var self = this
+
+	self._body.push(chunk)
+	cb()
+}
+
+ClientRequest.prototype._resetTimers = function (done) {
+	var self = this
+
+	global.clearTimeout(self._socketTimer)
+	self._socketTimer = null
+
+	if (done) {
+		global.clearTimeout(self._fetchTimer)
+		self._fetchTimer = null
+	} else if (self._socketTimeout) {
+		self._socketTimer = global.setTimeout(function () {
+			self.emit('timeout')
+		}, self._socketTimeout)
+	}
+}
+
+ClientRequest.prototype.abort = ClientRequest.prototype.destroy = function (err) {
+	var self = this
+	self._destroyed = true
+	self._resetTimers(true)
+	if (self._response)
+		self._response._destroyed = true
+	if (self._xhr)
+		self._xhr.abort()
+	else if (self._fetchAbortController)
+		self._fetchAbortController.abort()
+
+	if (err)
+		self.emit('error', err)
+}
+
+ClientRequest.prototype.end = function (data, encoding, cb) {
+	var self = this
+	if (typeof data === 'function') {
+		cb = data
+		data = undefined
+	}
+
+	stream.Writable.prototype.end.call(self, data, encoding, cb)
+}
+
+ClientRequest.prototype.setTimeout = function (timeout, cb) {
+	var self = this
+
+	if (cb)
+		self.once('timeout', cb)
+
+	self._socketTimeout = timeout
+	self._resetTimers(false)
+}
+
+ClientRequest.prototype.flushHeaders = function () {}
+ClientRequest.prototype.setNoDelay = function () {}
+ClientRequest.prototype.setSocketKeepAlive = function () {}
+
+// Taken from http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader%28%29-method
+var unsafeHeaders = [
+	'accept-charset',
+	'accept-encoding',
+	'access-control-request-headers',
+	'access-control-request-method',
+	'connection',
+	'content-length',
+	'cookie',
+	'cookie2',
+	'date',
+	'dnt',
+	'expect',
+	'host',
+	'keep-alive',
+	'origin',
+	'referer',
+	'te',
+	'trailer',
+	'transfer-encoding',
+	'upgrade',
+	'via'
+]

node_modules/stream-http/lib/response.js

@@ -0,0 +1,211 @@
+var capability = require('./capability')
+var inherits = require('inherits')
+var stream = require('readable-stream')
+
+var rStates = exports.readyStates = {
+	UNSENT: 0,
+	OPENED: 1,
+	HEADERS_RECEIVED: 2,
+	LOADING: 3,
+	DONE: 4
+}
+
+var IncomingMessage = exports.IncomingMessage = function (xhr, response, mode, resetTimers) {
+	var self = this
+	stream.Readable.call(self)
+
+	self._mode = mode
+	self.headers = {}
+	self.rawHeaders = []
+	self.trailers = {}
+	self.rawTrailers = []
+
+	// Fake the 'close' event, but only once 'end' fires
+	self.on('end', function () {
+		// The nextTick is necessary to prevent the 'request' module from causing an infinite loop
+		process.nextTick(function () {
+			self.emit('close')
+		})
+	})
+
+	if (mode === 'fetch') {
+		self._fetchResponse = response
+
+		self.url = response.url
+		self.statusCode = response.status
+		self.statusMessage = response.statusText
+		
+		response.headers.forEach(function (header, key){
+			self.headers[key.toLowerCase()] = header
+			self.rawHeaders.push(key, header)
+		})
+
+		if (capability.writableStream) {
+			var writable = new WritableStream({
+				write: function (chunk) {
+					resetTimers(false)
+					return new Promise(function (resolve, reject) {
+						if (self._destroyed) {
+							reject()
+						} else if(self.push(Buffer.from(chunk))) {
+							resolve()
+						} else {
+							self._resumeFetch = resolve
+						}
+					})
+				},
+				close: function () {
+					resetTimers(true)
+					if (!self._destroyed)
+						self.push(null)
+				},
+				abort: function (err) {
+					resetTimers(true)
+					if (!self._destroyed)
+						self.emit('error', err)
+				}
+			})
+
+			try {
+				response.body.pipeTo(writable).catch(function (err) {
+					resetTimers(true)
+					if (!self._destroyed)
+						self.emit('error', err)
+				})
+				return
+			} catch (e) {} // pipeTo method isn't defined. Can't find a better way to feature test this
+		}
+		// fallback for when writableStream or pipeTo aren't available
+		var reader = response.body.getReader()
+		function read () {
+			reader.read().then(function (result) {
+				if (self._destroyed)
+					return
+				resetTimers(result.done)
+				if (result.done) {
+					self.push(null)
+					return
+				}
+				self.push(Buffer.from(result.value))
+				read()
+			}).catch(function (err) {
+				resetTimers(true)
+				if (!self._destroyed)
+					self.emit('error', err)
+			})
+		}
+		read()
+	} else {
+		self._xhr = xhr
+		self._pos = 0
+
+		self.url = xhr.responseURL
+		self.statusCode = xhr.status
+		self.statusMessage = xhr.statusText
+		var headers = xhr.getAllResponseHeaders().split(/\r?\n/)
+		headers.forEach(function (header) {
+			var matches = header.match(/^([^:]+):\s*(.*)/)
+			if (matches) {
+				var key = matches[1].toLowerCase()
+				if (key === 'set-cookie') {
+					if (self.headers[key] === undefined) {
+						self.headers[key] = []
+					}
+					self.headers[key].push(matches[2])
+				} else if (self.headers[key] !== undefined) {
+					self.headers[key] += ', ' + matches[2]
+				} else {
+					self.headers[key] = matches[2]
+				}
+				self.rawHeaders.push(matches[1], matches[2])
+			}
+		})
+
+		self._charset = 'x-user-defined'
+		if (!capability.overrideMimeType) {
+			var mimeType = self.rawHeaders['mime-type']
+			if (mimeType) {
+				var charsetMatch = mimeType.match(/;\s*charset=([^;])(;|$)/)
+				if (charsetMatch) {
+					self._charset = charsetMatch[1].toLowerCase()
+				}
+			}
+			if (!self._charset)
+				self._charset = 'utf-8' // best guess
+		}
+	}
+}
+
+inherits(IncomingMessage, stream.Readable)
+
+IncomingMessage.prototype._read = function () {
+	var self = this
+
+	var resolve = self._resumeFetch
+	if (resolve) {
+		self._resumeFetch = null
+		resolve()
+	}
+}
+
+IncomingMessage.prototype._onXHRProgress = function (resetTimers) {
+	var self = this
+
+	var xhr = self._xhr
+
+	var response = null
+	switch (self._mode) {
+		case 'text':
+			response = xhr.responseText
+			if (response.length > self._pos) {
+				var newData = response.substr(self._pos)
+				if (self._charset === 'x-user-defined') {
+					var buffer = Buffer.alloc(newData.length)
+					for (var i = 0; i < newData.length; i++)
+						buffer[i] = newData.charCodeAt(i) & 0xff
+
+					self.push(buffer)
+				} else {
+					self.push(newData, self._charset)
+				}
+				self._pos = response.length
+			}
+			break
+		case 'arraybuffer':
+			if (xhr.readyState !== rStates.DONE || !xhr.response)
+				break
+			response = xhr.response
+			self.push(Buffer.from(new Uint8Array(response)))
+			break
+		case 'moz-chunked-arraybuffer': // take whole
+			response = xhr.response
+			if (xhr.readyState !== rStates.LOADING || !response)
+				break
+			self.push(Buffer.from(new Uint8Array(response)))
+			break
+		case 'ms-stream':
+			response = xhr.response
+			if (xhr.readyState !== rStates.LOADING)
+				break
+			var reader = new global.MSStreamReader()
+			reader.onprogress = function () {
+				if (reader.result.byteLength > self._pos) {
+					self.push(Buffer.from(new Uint8Array(reader.result.slice(self._pos))))
+					self._pos = reader.result.byteLength
+				}
+			}
+			reader.onload = function () {
+				resetTimers(true)
+				self.push(null)
+			}
+			// reader.onerror = ??? // TODO: this
+			reader.readAsArrayBuffer(response)
+			break
+	}
+
+	// The ms-stream case handles end separately in reader.onload()
+	if (self._xhr.readyState === rStates.DONE && self._mode !== 'ms-stream') {
+		resetTimers(true)
+		self.push(null)
+	}
+}

node_modules/stream-http/package.json

@@ -0,0 +1,47 @@
+{
+  "name": "stream-http",
+  "version": "3.2.0",
+  "description": "Streaming http in the browser",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/jhiesey/stream-http.git"
+  },
+  "scripts": {
+    "test": "npm run test-node && ([ -n \"${TRAVIS_PULL_REQUEST}\" -a \"${TRAVIS_PULL_REQUEST}\" != 'false' ] || npm run test-browser)",
+    "test-node": "tape test/node/*.js",
+    "test-browser": "airtap --concurrency 1 -- test/browser/*.js",
+    "test-browser-local": "airtap --preset local -- test/browser/*.js"
+  },
+  "author": "John Hiesey",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/jhiesey/stream-http/issues"
+  },
+  "homepage": "https://github.com/jhiesey/stream-http#readme",
+  "keywords": [
+    "http",
+    "stream",
+    "streaming",
+    "xhr",
+    "http-browserify"
+  ],
+  "dependencies": {
+    "builtin-status-codes": "^3.0.0",
+    "inherits": "^2.0.4",
+    "readable-stream": "^3.6.0",
+    "xtend": "^4.0.2"
+  },
+  "devDependencies": {
+    "airtap": "^4.0.3",
+    "airtap-manual": "^1.0.0",
+    "airtap-sauce": "^1.1.0",
+    "basic-auth": "^2.0.1",
+    "brfs": "^2.0.2",
+    "cookie-parser": "^1.4.5",
+    "express": "^4.17.1",
+    "tape": "^5.2.2",
+    "ua-parser-js": "^0.7.28",
+    "webworkify": "^1.5.0"
+  }
+}