Firebase Update

express-server/node_modules/whatwg-fetch/LICENSE

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+Copyright (c) 2014-2016 GitHub, Inc.
+
+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.

express-server/node_modules/whatwg-fetch/README.md

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+# window.fetch polyfill
+
+The `fetch()` function is a Promise-based mechanism for programmatically making
+web requests in the browser. This project is a polyfill that implements a subset
+of the standard [Fetch specification][], enough to make `fetch` a viable
+replacement for most uses of XMLHttpRequest in traditional web applications.
+
+## Table of Contents
+
+* [Read this first](#read-this-first)
+* [Installation](#installation)
+* [Usage](#usage)
+  * [Importing](#importing)
+  * [HTML](#html)
+  * [JSON](#json)
+  * [Response metadata](#response-metadata)
+  * [Post form](#post-form)
+  * [Post JSON](#post-json)
+  * [File upload](#file-upload)
+  * [Caveats](#caveats)
+    * [Handling HTTP error statuses](#handling-http-error-statuses)
+    * [Sending cookies](#sending-cookies)
+    * [Receiving cookies](#receiving-cookies)
+    * [Obtaining the Response URL](#obtaining-the-response-url)
+    * [Aborting requests](#aborting-requests)
+* [Browser Support](#browser-support)
+
+## Read this first
+
+* If you believe you found a bug with how `fetch` behaves in your browser,
+  please **don't open an issue in this repository** unless you are testing in
+  an old version of a browser that doesn't support `window.fetch` natively.
+  This project is a _polyfill_, and since all modern browsers now implement the
+  `fetch` function natively, **no code from this project** actually takes any
+  effect there. See [Browser support](#browser-support) for detailed
+  information.
+
+* If you have trouble **making a request to another domain** (a different
+  subdomain or port number also constitutes another domain), please familiarize
+  yourself with all the intricacies and limitations of [CORS][] requests.
+  Because CORS requires participation of the server by implementing specific
+  HTTP response headers, it is often nontrivial to set up or debug. CORS is
+  exclusively handled by the browser's internal mechanisms which this polyfill
+  cannot influence.
+
+* This project **doesn't work under Node.js environments**. It's meant for web
+  browsers only. You should ensure that your application doesn't try to package
+  and run this on the server.
+
+* If you have an idea for a new feature of `fetch`, **submit your feature
+  requests** to the [specification's repository](https://github.com/whatwg/fetch/issues).
+  We only add features and APIs that are part of the [Fetch specification][].
+
+## Installation
+
+```
+npm install whatwg-fetch --save
+```
+
+You will also need a Promise polyfill for [older browsers](http://caniuse.com/#feat=promises).
+We recommend [taylorhakes/promise-polyfill](https://github.com/taylorhakes/promise-polyfill)
+for its small size and Promises/A+ compatibility.
+
+## Usage
+
+For a more comprehensive API reference that this polyfill supports, refer to
+https://github.github.io/fetch/.
+
+### Importing
+
+Importing will automatically polyfill `window.fetch` and related APIs:
+
+```javascript
+import 'whatwg-fetch'
+
+window.fetch(...)
+```
+
+If for some reason you need to access the polyfill implementation, it is
+available via exports:
+
+```javascript
+import {fetch as fetchPolyfill} from 'whatwg-fetch'
+
+window.fetch(...)   // use native browser version
+fetchPolyfill(...)  // use polyfill implementation
+```
+
+This approach can be used to, for example, use [abort
+functionality](#aborting-requests) in browsers that implement a native but
+outdated version of fetch that doesn't support aborting.
+
+For use with webpack, add this package in the `entry` configuration option
+before your application entry point:
+
+```javascript
+entry: ['whatwg-fetch', ...]
+```
+
+### HTML
+
+```javascript
+fetch('/users.html')
+  .then(function(response) {
+    return response.text()
+  }).then(function(body) {
+    document.body.innerHTML = body
+  })
+```
+
+### JSON
+
+```javascript
+fetch('/users.json')
+  .then(function(response) {
+    return response.json()
+  }).then(function(json) {
+    console.log('parsed json', json)
+  }).catch(function(ex) {
+    console.log('parsing failed', ex)
+  })
+```
+
+### Response metadata
+
+```javascript
+fetch('/users.json').then(function(response) {
+  console.log(response.headers.get('Content-Type'))
+  console.log(response.headers.get('Date'))
+  console.log(response.status)
+  console.log(response.statusText)
+})
+```
+
+### Post form
+
+```javascript
+var form = document.querySelector('form')
+
+fetch('/users', {
+  method: 'POST',
+  body: new FormData(form)
+})
+```
+
+### Post JSON
+
+```javascript
+fetch('/users', {
+  method: 'POST',
+  headers: {
+    'Content-Type': 'application/json'
+  },
+  body: JSON.stringify({
+    name: 'Hubot',
+    login: 'hubot',
+  })
+})
+```
+
+### File upload
+
+```javascript
+var input = document.querySelector('input[type="file"]')
+
+var data = new FormData()
+data.append('file', input.files[0])
+data.append('user', 'hubot')
+
+fetch('/avatars', {
+  method: 'POST',
+  body: data
+})
+```
+
+### Caveats
+
+* The Promise returned from `fetch()` **won't reject on HTTP error status**
+  even if the response is an HTTP 404 or 500. Instead, it will resolve normally,
+  and it will only reject on network failure or if anything prevented the
+  request from completing.
+
+* For maximum browser compatibility when it comes to sending & receiving
+  cookies, always supply the `credentials: 'same-origin'` option instead of
+  relying on the default. See [Sending cookies](#sending-cookies).
+
+#### Handling HTTP error statuses
+
+To have `fetch` Promise reject on HTTP error statuses, i.e. on any non-2xx
+status, define a custom response handler:
+
+```javascript
+function checkStatus(response) {
+  if (response.status >= 200 && response.status < 300) {
+    return response
+  } else {
+    var error = new Error(response.statusText)
+    error.response = response
+    throw error
+  }
+}
+
+function parseJSON(response) {
+  return response.json()
+}
+
+fetch('/users')
+  .then(checkStatus)
+  .then(parseJSON)
+  .then(function(data) {
+    console.log('request succeeded with JSON response', data)
+  }).catch(function(error) {
+    console.log('request failed', error)
+  })
+```
+
+#### Sending cookies
+
+For [CORS][] requests, use `credentials: 'include'` to allow sending credentials
+to other domains:
+
+```javascript
+fetch('https://example.com:1234/users', {
+  credentials: 'include'
+})
+```
+
+To disable sending or receiving cookies for requests to any domain, including
+the current one, use the "omit" value:
+
+```javascript
+fetch('/users', {
+  credentials: 'omit'
+})
+```
+
+The default value for `credentials` is "same-origin".
+
+The default for `credentials` wasn't always the same, though. The following
+versions of browsers implemented an older version of the fetch specification
+where the default was "omit":
+
+* Firefox 39-60
+* Chrome 42-67
+* Safari 10.1-11.1.2
+
+If you target these browsers, it's advisable to always specify `credentials:
+'same-origin'` explicitly with all fetch requests instead of relying on the
+default:
+
+```javascript
+fetch('/users', {
+  credentials: 'same-origin'
+})
+```
+
+#### Receiving cookies
+
+As with XMLHttpRequest, the `Set-Cookie` response header returned from the
+server is a [forbidden header name][] and therefore can't be programmatically
+read with `response.headers.get()`. Instead, it's the browser's responsibility
+to handle new cookies being set (if applicable to the current URL). Unless they
+are HTTP-only, new cookies will be available through `document.cookie`.
+
+#### Obtaining the Response URL
+
+Due to limitations of XMLHttpRequest, the `response.url` value might not be
+reliable after HTTP redirects on older browsers.
+
+The solution is to configure the server to set the response HTTP header
+`X-Request-URL` to the current URL after any redirect that might have happened.
+It should be safe to set it unconditionally.
+
+``` ruby
+# Ruby on Rails controller example
+response.headers['X-Request-URL'] = request.url
+```
+
+This server workaround is necessary if you need reliable `response.url` in
+Firefox < 32, Chrome < 37, Safari, or IE.
+
+#### Aborting requests
+
+This polyfill supports
+[the abortable fetch API](https://developers.google.com/web/updates/2017/09/abortable-fetch).
+However, aborting a fetch requires use of two additional DOM APIs:
+[AbortController](https://developer.mozilla.org/en-US/docs/Web/API/AbortController) and
+[AbortSignal](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal).
+Typically, browsers that do not support fetch will also not support
+AbortController or AbortSignal. Consequently, you will need to include
+[an additional polyfill](https://github.com/mo/abortcontroller-polyfill#readme)
+for these APIs to abort fetches:
+
+```js
+import 'abortcontroller-polyfill/dist/abortcontroller-polyfill-only'
+import {fetch} from 'whatwg-fetch'
+
+// use native browser implementation if it supports aborting
+const abortableFetch = ('signal' in new Request('')) ? window.fetch : fetch
+
+const controller = new AbortController()
+
+abortableFetch('/avatars', {
+  signal: controller.signal
+}).catch(function(ex) {
+  if (ex.name === 'AbortError') {
+    console.log('request aborted')
+  }
+})
+
+// some time later...
+controller.abort()
+```
+
+## Browser Support
+
+- Chrome
+- Firefox
+- Safari 6.1+
+- Internet Explorer 10+
+
+Note: modern browsers such as Chrome, Firefox, Microsoft Edge, and Safari contain native
+implementations of `window.fetch`, therefore the code from this polyfill doesn't
+have any effect on those browsers. If you believe you've encountered an error
+with how `window.fetch` is implemented in any of these browsers, you should file
+an issue with that browser vendor instead of this project.
+
+
+  [fetch specification]: https://fetch.spec.whatwg.org
+  [cors]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
+    "Cross-origin resource sharing"
+  [csrf]: https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet
+    "Cross-site request forgery"
+  [forbidden header name]: https://developer.mozilla.org/en-US/docs/Glossary/Forbidden_header_name

express-server/node_modules/whatwg-fetch/dist/fetch.umd.js

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+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (factory((global.WHATWGFetch = {})));
+}(this, (function (exports) { 'use strict';
+
+  var support = {
+    searchParams: 'URLSearchParams' in self,
+    iterable: 'Symbol' in self && 'iterator' in Symbol,
+    blob:
+      'FileReader' in self &&
+      'Blob' in self &&
+      (function() {
+        try {
+          new Blob();
+          return true
+        } catch (e) {
+          return false
+        }
+      })(),
+    formData: 'FormData' in self,
+    arrayBuffer: 'ArrayBuffer' in self
+  };
+
+  function isDataView(obj) {
+    return obj && DataView.prototype.isPrototypeOf(obj)
+  }
+
+  if (support.arrayBuffer) {
+    var viewClasses = [
+      '[object Int8Array]',
+      '[object Uint8Array]',
+      '[object Uint8ClampedArray]',
+      '[object Int16Array]',
+      '[object Uint16Array]',
+      '[object Int32Array]',
+      '[object Uint32Array]',
+      '[object Float32Array]',
+      '[object Float64Array]'
+    ];
+
+    var isArrayBufferView =
+      ArrayBuffer.isView ||
+      function(obj) {
+        return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1
+      };
+  }
+
+  function normalizeName(name) {
+    if (typeof name !== 'string') {
+      name = String(name);
+    }
+    if (/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(name)) {
+      throw new TypeError('Invalid character in header field name')
+    }
+    return name.toLowerCase()
+  }
+
+  function normalizeValue(value) {
+    if (typeof value !== 'string') {
+      value = String(value);
+    }
+    return value
+  }
+
+  // Build a destructive iterator for the value list
+  function iteratorFor(items) {
+    var iterator = {
+      next: function() {
+        var value = items.shift();
+        return {done: value === undefined, value: value}
+      }
+    };
+
+    if (support.iterable) {
+      iterator[Symbol.iterator] = function() {
+        return iterator
+      };
+    }
+
+    return iterator
+  }
+
+  function Headers(headers) {
+    this.map = {};
+
+    if (headers instanceof Headers) {
+      headers.forEach(function(value, name) {
+        this.append(name, value);
+      }, this);
+    } else if (Array.isArray(headers)) {
+      headers.forEach(function(header) {
+        this.append(header[0], header[1]);
+      }, this);
+    } else if (headers) {
+      Object.getOwnPropertyNames(headers).forEach(function(name) {
+        this.append(name, headers[name]);
+      }, this);
+    }
+  }
+
+  Headers.prototype.append = function(name, value) {
+    name = normalizeName(name);
+    value = normalizeValue(value);
+    var oldValue = this.map[name];
+    this.map[name] = oldValue ? oldValue + ', ' + value : value;
+  };
+
+  Headers.prototype['delete'] = function(name) {
+    delete this.map[normalizeName(name)];
+  };
+
+  Headers.prototype.get = function(name) {
+    name = normalizeName(name);
+    return this.has(name) ? this.map[name] : null
+  };
+
+  Headers.prototype.has = function(name) {
+    return this.map.hasOwnProperty(normalizeName(name))
+  };
+
+  Headers.prototype.set = function(name, value) {
+    this.map[normalizeName(name)] = normalizeValue(value);
+  };
+
+  Headers.prototype.forEach = function(callback, thisArg) {
+    for (var name in this.map) {
+      if (this.map.hasOwnProperty(name)) {
+        callback.call(thisArg, this.map[name], name, this);
+      }
+    }
+  };
+
+  Headers.prototype.keys = function() {
+    var items = [];
+    this.forEach(function(value, name) {
+      items.push(name);
+    });
+    return iteratorFor(items)
+  };
+
+  Headers.prototype.values = function() {
+    var items = [];
+    this.forEach(function(value) {
+      items.push(value);
+    });
+    return iteratorFor(items)
+  };
+
+  Headers.prototype.entries = function() {
+    var items = [];
+    this.forEach(function(value, name) {
+      items.push([name, value]);
+    });
+    return iteratorFor(items)
+  };
+
+  if (support.iterable) {
+    Headers.prototype[Symbol.iterator] = Headers.prototype.entries;
+  }
+
+  function consumed(body) {
+    if (body.bodyUsed) {
+      return Promise.reject(new TypeError('Already read'))
+    }
+    body.bodyUsed = true;
+  }
+
+  function fileReaderReady(reader) {
+    return new Promise(function(resolve, reject) {
+      reader.onload = function() {
+        resolve(reader.result);
+      };
+      reader.onerror = function() {
+        reject(reader.error);
+      };
+    })
+  }
+
+  function readBlobAsArrayBuffer(blob) {
+    var reader = new FileReader();
+    var promise = fileReaderReady(reader);
+    reader.readAsArrayBuffer(blob);
+    return promise
+  }
+
+  function readBlobAsText(blob) {
+    var reader = new FileReader();
+    var promise = fileReaderReady(reader);
+    reader.readAsText(blob);
+    return promise
+  }
+
+  function readArrayBufferAsText(buf) {
+    var view = new Uint8Array(buf);
+    var chars = new Array(view.length);
+
+    for (var i = 0; i < view.length; i++) {
+      chars[i] = String.fromCharCode(view[i]);
+    }
+    return chars.join('')
+  }
+
+  function bufferClone(buf) {
+    if (buf.slice) {
+      return buf.slice(0)
+    } else {
+      var view = new Uint8Array(buf.byteLength);
+      view.set(new Uint8Array(buf));
+      return view.buffer
+    }
+  }
+
+  function Body() {
+    this.bodyUsed = false;
+
+    this._initBody = function(body) {
+      this._bodyInit = body;
+      if (!body) {
+        this._bodyText = '';
+      } else if (typeof body === 'string') {
+        this._bodyText = body;
+      } else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
+        this._bodyBlob = body;
+      } else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
+        this._bodyFormData = body;
+      } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
+        this._bodyText = body.toString();
+      } else if (support.arrayBuffer && support.blob && isDataView(body)) {
+        this._bodyArrayBuffer = bufferClone(body.buffer);
+        // IE 10-11 can't handle a DataView body.
+        this._bodyInit = new Blob([this._bodyArrayBuffer]);
+      } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) {
+        this._bodyArrayBuffer = bufferClone(body);
+      } else {
+        this._bodyText = body = Object.prototype.toString.call(body);
+      }
+
+      if (!this.headers.get('content-type')) {
+        if (typeof body === 'string') {
+          this.headers.set('content-type', 'text/plain;charset=UTF-8');
+        } else if (this._bodyBlob && this._bodyBlob.type) {
+          this.headers.set('content-type', this._bodyBlob.type);
+        } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
+          this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8');
+        }
+      }
+    };
+
+    if (support.blob) {
+      this.blob = function() {
+        var rejected = consumed(this);
+        if (rejected) {
+          return rejected
+        }
+
+        if (this._bodyBlob) {
+          return Promise.resolve(this._bodyBlob)
+        } else if (this._bodyArrayBuffer) {
+          return Promise.resolve(new Blob([this._bodyArrayBuffer]))
+        } else if (this._bodyFormData) {
+          throw new Error('could not read FormData body as blob')
+        } else {
+          return Promise.resolve(new Blob([this._bodyText]))
+        }
+      };
+
+      this.arrayBuffer = function() {
+        if (this._bodyArrayBuffer) {
+          return consumed(this) || Promise.resolve(this._bodyArrayBuffer)
+        } else {
+          return this.blob().then(readBlobAsArrayBuffer)
+        }
+      };
+    }
+
+    this.text = function() {
+      var rejected = consumed(this);
+      if (rejected) {
+        return rejected
+      }
+
+      if (this._bodyBlob) {
+        return readBlobAsText(this._bodyBlob)
+      } else if (this._bodyArrayBuffer) {
+        return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer))
+      } else if (this._bodyFormData) {
+        throw new Error('could not read FormData body as text')
+      } else {
+        return Promise.resolve(this._bodyText)
+      }
+    };
+
+    if (support.formData) {
+      this.formData = function() {
+        return this.text().then(decode)
+      };
+    }
+
+    this.json = function() {
+      return this.text().then(JSON.parse)
+    };
+
+    return this
+  }
+
+  // HTTP methods whose capitalization should be normalized
+  var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT'];
+
+  function normalizeMethod(method) {
+    var upcased = method.toUpperCase();
+    return methods.indexOf(upcased) > -1 ? upcased : method
+  }
+
+  function Request(input, options) {
+    options = options || {};
+    var body = options.body;
+
+    if (input instanceof Request) {
+      if (input.bodyUsed) {
+        throw new TypeError('Already read')
+      }
+      this.url = input.url;
+      this.credentials = input.credentials;
+      if (!options.headers) {
+        this.headers = new Headers(input.headers);
+      }
+      this.method = input.method;
+      this.mode = input.mode;
+      this.signal = input.signal;
+      if (!body && input._bodyInit != null) {
+        body = input._bodyInit;
+        input.bodyUsed = true;
+      }
+    } else {
+      this.url = String(input);
+    }
+
+    this.credentials = options.credentials || this.credentials || 'same-origin';
+    if (options.headers || !this.headers) {
+      this.headers = new Headers(options.headers);
+    }
+    this.method = normalizeMethod(options.method || this.method || 'GET');
+    this.mode = options.mode || this.mode || null;
+    this.signal = options.signal || this.signal;
+    this.referrer = null;
+
+    if ((this.method === 'GET' || this.method === 'HEAD') && body) {
+      throw new TypeError('Body not allowed for GET or HEAD requests')
+    }
+    this._initBody(body);
+  }
+
+  Request.prototype.clone = function() {
+    return new Request(this, {body: this._bodyInit})
+  };
+
+  function decode(body) {
+    var form = new FormData();
+    body
+      .trim()
+      .split('&')
+      .forEach(function(bytes) {
+        if (bytes) {
+          var split = bytes.split('=');
+          var name = split.shift().replace(/\+/g, ' ');
+          var value = split.join('=').replace(/\+/g, ' ');
+          form.append(decodeURIComponent(name), decodeURIComponent(value));
+        }
+      });
+    return form
+  }
+
+  function parseHeaders(rawHeaders) {
+    var headers = new Headers();
+    // Replace instances of \r\n and \n followed by at least one space or horizontal tab with a space
+    // https://tools.ietf.org/html/rfc7230#section-3.2
+    var preProcessedHeaders = rawHeaders.replace(/\r?\n[\t ]+/g, ' ');
+    preProcessedHeaders.split(/\r?\n/).forEach(function(line) {
+      var parts = line.split(':');
+      var key = parts.shift().trim();
+      if (key) {
+        var value = parts.join(':').trim();
+        headers.append(key, value);
+      }
+    });
+    return headers
+  }
+
+  Body.call(Request.prototype);
+
+  function Response(bodyInit, options) {
+    if (!options) {
+      options = {};
+    }
+
+    this.type = 'default';
+    this.status = options.status === undefined ? 200 : options.status;
+    this.ok = this.status >= 200 && this.status < 300;
+    this.statusText = 'statusText' in options ? options.statusText : 'OK';
+    this.headers = new Headers(options.headers);
+    this.url = options.url || '';
+    this._initBody(bodyInit);
+  }
+
+  Body.call(Response.prototype);
+
+  Response.prototype.clone = function() {
+    return new Response(this._bodyInit, {
+      status: this.status,
+      statusText: this.statusText,
+      headers: new Headers(this.headers),
+      url: this.url
+    })
+  };
+
+  Response.error = function() {
+    var response = new Response(null, {status: 0, statusText: ''});
+    response.type = 'error';
+    return response
+  };
+
+  var redirectStatuses = [301, 302, 303, 307, 308];
+
+  Response.redirect = function(url, status) {
+    if (redirectStatuses.indexOf(status) === -1) {
+      throw new RangeError('Invalid status code')
+    }
+
+    return new Response(null, {status: status, headers: {location: url}})
+  };
+
+  exports.DOMException = self.DOMException;
+  try {
+    new exports.DOMException();
+  } catch (err) {
+    exports.DOMException = function(message, name) {
+      this.message = message;
+      this.name = name;
+      var error = Error(message);
+      this.stack = error.stack;
+    };
+    exports.DOMException.prototype = Object.create(Error.prototype);
+    exports.DOMException.prototype.constructor = exports.DOMException;
+  }
+
+  function fetch(input, init) {
+    return new Promise(function(resolve, reject) {
+      var request = new Request(input, init);
+
+      if (request.signal && request.signal.aborted) {
+        return reject(new exports.DOMException('Aborted', 'AbortError'))
+      }
+
+      var xhr = new XMLHttpRequest();
+
+      function abortXhr() {
+        xhr.abort();
+      }
+
+      xhr.onload = function() {
+        var options = {
+          status: xhr.status,
+          statusText: xhr.statusText,
+          headers: parseHeaders(xhr.getAllResponseHeaders() || '')
+        };
+        options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL');
+        var body = 'response' in xhr ? xhr.response : xhr.responseText;
+        resolve(new Response(body, options));
+      };
+
+      xhr.onerror = function() {
+        reject(new TypeError('Network request failed'));
+      };
+
+      xhr.ontimeout = function() {
+        reject(new TypeError('Network request failed'));
+      };
+
+      xhr.onabort = function() {
+        reject(new exports.DOMException('Aborted', 'AbortError'));
+      };
+
+      xhr.open(request.method, request.url, true);
+
+      if (request.credentials === 'include') {
+        xhr.withCredentials = true;
+      } else if (request.credentials === 'omit') {
+        xhr.withCredentials = false;
+      }
+
+      if ('responseType' in xhr && support.blob) {
+        xhr.responseType = 'blob';
+      }
+
+      request.headers.forEach(function(value, name) {
+        xhr.setRequestHeader(name, value);
+      });
+
+      if (request.signal) {
+        request.signal.addEventListener('abort', abortXhr);
+
+        xhr.onreadystatechange = function() {
+          // DONE (success or failure)
+          if (xhr.readyState === 4) {
+            request.signal.removeEventListener('abort', abortXhr);
+          }
+        };
+      }
+
+      xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit);
+    })
+  }
+
+  fetch.polyfill = true;
+
+  if (!self.fetch) {
+    self.fetch = fetch;
+    self.Headers = Headers;
+    self.Request = Request;
+    self.Response = Response;
+  }
+
+  exports.Headers = Headers;
+  exports.Request = Request;
+  exports.Response = Response;
+  exports.fetch = fetch;
+
+  Object.defineProperty(exports, '__esModule', { value: true });
+
+})));

express-server/node_modules/whatwg-fetch/dist/fetch.umd.js.flow

@@ -0,0 +1,119 @@
+/* @flow strict */
+
+type CredentialsType = 'omit' | 'same-origin' | 'include'
+
+type ResponseType =  'default' | 'error'
+
+type BodyInit = string | URLSearchParams | FormData | Blob | ArrayBuffer | $ArrayBufferView
+
+type RequestInfo = Request | URL | string
+
+type RequestOptions = {|
+  body?: ?BodyInit;
+
+  credentials?: CredentialsType;
+  headers?: HeadersInit;
+  method?: string;
+  mode?: string;
+  referrer?: string;
+  signal?: ?AbortSignal;
+|}
+
+type ResponseOptions = {|
+  status?: number;
+  statusText?: string;
+  headers?: HeadersInit;
+|}
+
+type HeadersInit = Headers | {[string]: string}
+
+// https://github.com/facebook/flow/blob/f68b89a5012bd995ab3509e7a41b7325045c4045/lib/bom.js#L902-L914
+declare class Headers {
+  @@iterator(): Iterator<[string, string]>;
+  constructor(init?: HeadersInit): void;
+  append(name: string, value: string): void;
+  delete(name: string): void;
+  entries(): Iterator<[string, string]>;
+  forEach((value: string, name: string, headers: Headers) => any, thisArg?: any): void;
+  get(name: string): null | string;
+  has(name: string): boolean;
+  keys(): Iterator<string>;
+  set(name: string, value: string): void;
+  values(): Iterator<string>;
+}
+
+// https://github.com/facebook/flow/pull/6548
+interface AbortSignal {
+  aborted: boolean;
+  addEventListener(type: string, listener: (Event) => mixed, options?: EventListenerOptionsOrUseCapture): void;
+  removeEventListener(type: string, listener: (Event) => mixed, options?: EventListenerOptionsOrUseCapture): void;
+}
+
+// https://github.com/facebook/flow/blob/f68b89a5012bd995ab3509e7a41b7325045c4045/lib/bom.js#L994-L1018
+// unsupported in polyfill:
+// - cache
+// - integrity
+// - redirect
+// - referrerPolicy
+declare class Request {
+  constructor(input: RequestInfo, init?: RequestOptions): void;
+  clone(): Request;
+
+  url: string;
+
+  credentials: CredentialsType;
+  headers: Headers;
+  method: string;
+  mode: ModeType;
+  referrer: string;
+  signal: ?AbortSignal;
+
+  // Body methods and attributes
+  bodyUsed: boolean;
+
+  arrayBuffer(): Promise<ArrayBuffer>;
+  blob(): Promise<Blob>;
+  formData(): Promise<FormData>;
+  json(): Promise<any>;
+  text(): Promise<string>;
+}
+
+// https://github.com/facebook/flow/blob/f68b89a5012bd995ab3509e7a41b7325045c4045/lib/bom.js#L968-L992
+// unsupported in polyfill:
+// - body
+// - redirected
+// - trailer
+declare class Response {
+  constructor(input?: ?BodyInit, init?: ResponseOptions): void;
+  clone(): Response;
+  static error(): Response;
+  static redirect(url: string, status?: number): Response;
+
+  type: ResponseType;
+  url: string;
+  ok: boolean;
+  status: number;
+  statusText: string;
+  headers: Headers;
+
+  // Body methods and attributes
+  bodyUsed: boolean;
+
+  arrayBuffer(): Promise<ArrayBuffer>;
+  blob(): Promise<Blob>;
+  formData(): Promise<FormData>;
+  json(): Promise<any>;
+  text(): Promise<string>;
+}
+
+declare class DOMException extends Error {
+  constructor(message?: string, name?: string): void;
+}
+
+declare module.exports: {
+  fetch(input: RequestInfo, init?: RequestOptions): Promise<Response>;
+  Headers: typeof Headers;
+  Request: typeof Request;
+  Response: typeof Response;
+  DOMException: typeof DOMException;
+}

express-server/node_modules/whatwg-fetch/fetch.js

@@ -0,0 +1,516 @@
+var support = {
+  searchParams: 'URLSearchParams' in self,
+  iterable: 'Symbol' in self && 'iterator' in Symbol,
+  blob:
+    'FileReader' in self &&
+    'Blob' in self &&
+    (function() {
+      try {
+        new Blob()
+        return true
+      } catch (e) {
+        return false
+      }
+    })(),
+  formData: 'FormData' in self,
+  arrayBuffer: 'ArrayBuffer' in self
+}
+
+function isDataView(obj) {
+  return obj && DataView.prototype.isPrototypeOf(obj)
+}
+
+if (support.arrayBuffer) {
+  var viewClasses = [
+    '[object Int8Array]',
+    '[object Uint8Array]',
+    '[object Uint8ClampedArray]',
+    '[object Int16Array]',
+    '[object Uint16Array]',
+    '[object Int32Array]',
+    '[object Uint32Array]',
+    '[object Float32Array]',
+    '[object Float64Array]'
+  ]
+
+  var isArrayBufferView =
+    ArrayBuffer.isView ||
+    function(obj) {
+      return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1
+    }
+}
+
+function normalizeName(name) {
+  if (typeof name !== 'string') {
+    name = String(name)
+  }
+  if (/[^a-z0-9\-#$%&'*+.^_`|~]/i.test(name)) {
+    throw new TypeError('Invalid character in header field name')
+  }
+  return name.toLowerCase()
+}
+
+function normalizeValue(value) {
+  if (typeof value !== 'string') {
+    value = String(value)
+  }
+  return value
+}
+
+// Build a destructive iterator for the value list
+function iteratorFor(items) {
+  var iterator = {
+    next: function() {
+      var value = items.shift()
+      return {done: value === undefined, value: value}
+    }
+  }
+
+  if (support.iterable) {
+    iterator[Symbol.iterator] = function() {
+      return iterator
+    }
+  }
+
+  return iterator
+}
+
+export function Headers(headers) {
+  this.map = {}
+
+  if (headers instanceof Headers) {
+    headers.forEach(function(value, name) {
+      this.append(name, value)
+    }, this)
+  } else if (Array.isArray(headers)) {
+    headers.forEach(function(header) {
+      this.append(header[0], header[1])
+    }, this)
+  } else if (headers) {
+    Object.getOwnPropertyNames(headers).forEach(function(name) {
+      this.append(name, headers[name])
+    }, this)
+  }
+}
+
+Headers.prototype.append = function(name, value) {
+  name = normalizeName(name)
+  value = normalizeValue(value)
+  var oldValue = this.map[name]
+  this.map[name] = oldValue ? oldValue + ', ' + value : value
+}
+
+Headers.prototype['delete'] = function(name) {
+  delete this.map[normalizeName(name)]
+}
+
+Headers.prototype.get = function(name) {
+  name = normalizeName(name)
+  return this.has(name) ? this.map[name] : null
+}
+
+Headers.prototype.has = function(name) {
+  return this.map.hasOwnProperty(normalizeName(name))
+}
+
+Headers.prototype.set = function(name, value) {
+  this.map[normalizeName(name)] = normalizeValue(value)
+}
+
+Headers.prototype.forEach = function(callback, thisArg) {
+  for (var name in this.map) {
+    if (this.map.hasOwnProperty(name)) {
+      callback.call(thisArg, this.map[name], name, this)
+    }
+  }
+}
+
+Headers.prototype.keys = function() {
+  var items = []
+  this.forEach(function(value, name) {
+    items.push(name)
+  })
+  return iteratorFor(items)
+}
+
+Headers.prototype.values = function() {
+  var items = []
+  this.forEach(function(value) {
+    items.push(value)
+  })
+  return iteratorFor(items)
+}
+
+Headers.prototype.entries = function() {
+  var items = []
+  this.forEach(function(value, name) {
+    items.push([name, value])
+  })
+  return iteratorFor(items)
+}
+
+if (support.iterable) {
+  Headers.prototype[Symbol.iterator] = Headers.prototype.entries
+}
+
+function consumed(body) {
+  if (body.bodyUsed) {
+    return Promise.reject(new TypeError('Already read'))
+  }
+  body.bodyUsed = true
+}
+
+function fileReaderReady(reader) {
+  return new Promise(function(resolve, reject) {
+    reader.onload = function() {
+      resolve(reader.result)
+    }
+    reader.onerror = function() {
+      reject(reader.error)
+    }
+  })
+}
+
+function readBlobAsArrayBuffer(blob) {
+  var reader = new FileReader()
+  var promise = fileReaderReady(reader)
+  reader.readAsArrayBuffer(blob)
+  return promise
+}
+
+function readBlobAsText(blob) {
+  var reader = new FileReader()
+  var promise = fileReaderReady(reader)
+  reader.readAsText(blob)
+  return promise
+}
+
+function readArrayBufferAsText(buf) {
+  var view = new Uint8Array(buf)
+  var chars = new Array(view.length)
+
+  for (var i = 0; i < view.length; i++) {
+    chars[i] = String.fromCharCode(view[i])
+  }
+  return chars.join('')
+}
+
+function bufferClone(buf) {
+  if (buf.slice) {
+    return buf.slice(0)
+  } else {
+    var view = new Uint8Array(buf.byteLength)
+    view.set(new Uint8Array(buf))
+    return view.buffer
+  }
+}
+
+function Body() {
+  this.bodyUsed = false
+
+  this._initBody = function(body) {
+    this._bodyInit = body
+    if (!body) {
+      this._bodyText = ''
+    } else if (typeof body === 'string') {
+      this._bodyText = body
+    } else if (support.blob && Blob.prototype.isPrototypeOf(body)) {
+      this._bodyBlob = body
+    } else if (support.formData && FormData.prototype.isPrototypeOf(body)) {
+      this._bodyFormData = body
+    } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
+      this._bodyText = body.toString()
+    } else if (support.arrayBuffer && support.blob && isDataView(body)) {
+      this._bodyArrayBuffer = bufferClone(body.buffer)
+      // IE 10-11 can't handle a DataView body.
+      this._bodyInit = new Blob([this._bodyArrayBuffer])
+    } else if (support.arrayBuffer && (ArrayBuffer.prototype.isPrototypeOf(body) || isArrayBufferView(body))) {
+      this._bodyArrayBuffer = bufferClone(body)
+    } else {
+      this._bodyText = body = Object.prototype.toString.call(body)
+    }
+
+    if (!this.headers.get('content-type')) {
+      if (typeof body === 'string') {
+        this.headers.set('content-type', 'text/plain;charset=UTF-8')
+      } else if (this._bodyBlob && this._bodyBlob.type) {
+        this.headers.set('content-type', this._bodyBlob.type)
+      } else if (support.searchParams && URLSearchParams.prototype.isPrototypeOf(body)) {
+        this.headers.set('content-type', 'application/x-www-form-urlencoded;charset=UTF-8')
+      }
+    }
+  }
+
+  if (support.blob) {
+    this.blob = function() {
+      var rejected = consumed(this)
+      if (rejected) {
+        return rejected
+      }
+
+      if (this._bodyBlob) {
+        return Promise.resolve(this._bodyBlob)
+      } else if (this._bodyArrayBuffer) {
+        return Promise.resolve(new Blob([this._bodyArrayBuffer]))
+      } else if (this._bodyFormData) {
+        throw new Error('could not read FormData body as blob')
+      } else {
+        return Promise.resolve(new Blob([this._bodyText]))
+      }
+    }
+
+    this.arrayBuffer = function() {
+      if (this._bodyArrayBuffer) {
+        return consumed(this) || Promise.resolve(this._bodyArrayBuffer)
+      } else {
+        return this.blob().then(readBlobAsArrayBuffer)
+      }
+    }
+  }
+
+  this.text = function() {
+    var rejected = consumed(this)
+    if (rejected) {
+      return rejected
+    }
+
+    if (this._bodyBlob) {
+      return readBlobAsText(this._bodyBlob)
+    } else if (this._bodyArrayBuffer) {
+      return Promise.resolve(readArrayBufferAsText(this._bodyArrayBuffer))
+    } else if (this._bodyFormData) {
+      throw new Error('could not read FormData body as text')
+    } else {
+      return Promise.resolve(this._bodyText)
+    }
+  }
+
+  if (support.formData) {
+    this.formData = function() {
+      return this.text().then(decode)
+    }
+  }
+
+  this.json = function() {
+    return this.text().then(JSON.parse)
+  }
+
+  return this
+}
+
+// HTTP methods whose capitalization should be normalized
+var methods = ['DELETE', 'GET', 'HEAD', 'OPTIONS', 'POST', 'PUT']
+
+function normalizeMethod(method) {
+  var upcased = method.toUpperCase()
+  return methods.indexOf(upcased) > -1 ? upcased : method
+}
+
+export function Request(input, options) {
+  options = options || {}
+  var body = options.body
+
+  if (input instanceof Request) {
+    if (input.bodyUsed) {
+      throw new TypeError('Already read')
+    }
+    this.url = input.url
+    this.credentials = input.credentials
+    if (!options.headers) {
+      this.headers = new Headers(input.headers)
+    }
+    this.method = input.method
+    this.mode = input.mode
+    this.signal = input.signal
+    if (!body && input._bodyInit != null) {
+      body = input._bodyInit
+      input.bodyUsed = true
+    }
+  } else {
+    this.url = String(input)
+  }
+
+  this.credentials = options.credentials || this.credentials || 'same-origin'
+  if (options.headers || !this.headers) {
+    this.headers = new Headers(options.headers)
+  }
+  this.method = normalizeMethod(options.method || this.method || 'GET')
+  this.mode = options.mode || this.mode || null
+  this.signal = options.signal || this.signal
+  this.referrer = null
+
+  if ((this.method === 'GET' || this.method === 'HEAD') && body) {
+    throw new TypeError('Body not allowed for GET or HEAD requests')
+  }
+  this._initBody(body)
+}
+
+Request.prototype.clone = function() {
+  return new Request(this, {body: this._bodyInit})
+}
+
+function decode(body) {
+  var form = new FormData()
+  body
+    .trim()
+    .split('&')
+    .forEach(function(bytes) {
+      if (bytes) {
+        var split = bytes.split('=')
+        var name = split.shift().replace(/\+/g, ' ')
+        var value = split.join('=').replace(/\+/g, ' ')
+        form.append(decodeURIComponent(name), decodeURIComponent(value))
+      }
+    })
+  return form
+}
+
+function parseHeaders(rawHeaders) {
+  var headers = new Headers()
+  // Replace instances of \r\n and \n followed by at least one space or horizontal tab with a space
+  // https://tools.ietf.org/html/rfc7230#section-3.2
+  var preProcessedHeaders = rawHeaders.replace(/\r?\n[\t ]+/g, ' ')
+  preProcessedHeaders.split(/\r?\n/).forEach(function(line) {
+    var parts = line.split(':')
+    var key = parts.shift().trim()
+    if (key) {
+      var value = parts.join(':').trim()
+      headers.append(key, value)
+    }
+  })
+  return headers
+}
+
+Body.call(Request.prototype)
+
+export function Response(bodyInit, options) {
+  if (!options) {
+    options = {}
+  }
+
+  this.type = 'default'
+  this.status = options.status === undefined ? 200 : options.status
+  this.ok = this.status >= 200 && this.status < 300
+  this.statusText = 'statusText' in options ? options.statusText : 'OK'
+  this.headers = new Headers(options.headers)
+  this.url = options.url || ''
+  this._initBody(bodyInit)
+}
+
+Body.call(Response.prototype)
+
+Response.prototype.clone = function() {
+  return new Response(this._bodyInit, {
+    status: this.status,
+    statusText: this.statusText,
+    headers: new Headers(this.headers),
+    url: this.url
+  })
+}
+
+Response.error = function() {
+  var response = new Response(null, {status: 0, statusText: ''})
+  response.type = 'error'
+  return response
+}
+
+var redirectStatuses = [301, 302, 303, 307, 308]
+
+Response.redirect = function(url, status) {
+  if (redirectStatuses.indexOf(status) === -1) {
+    throw new RangeError('Invalid status code')
+  }
+
+  return new Response(null, {status: status, headers: {location: url}})
+}
+
+export var DOMException = self.DOMException
+try {
+  new DOMException()
+} catch (err) {
+  DOMException = function(message, name) {
+    this.message = message
+    this.name = name
+    var error = Error(message)
+    this.stack = error.stack
+  }
+  DOMException.prototype = Object.create(Error.prototype)
+  DOMException.prototype.constructor = DOMException
+}
+
+export function fetch(input, init) {
+  return new Promise(function(resolve, reject) {
+    var request = new Request(input, init)
+
+    if (request.signal && request.signal.aborted) {
+      return reject(new DOMException('Aborted', 'AbortError'))
+    }
+
+    var xhr = new XMLHttpRequest()
+
+    function abortXhr() {
+      xhr.abort()
+    }
+
+    xhr.onload = function() {
+      var options = {
+        status: xhr.status,
+        statusText: xhr.statusText,
+        headers: parseHeaders(xhr.getAllResponseHeaders() || '')
+      }
+      options.url = 'responseURL' in xhr ? xhr.responseURL : options.headers.get('X-Request-URL')
+      var body = 'response' in xhr ? xhr.response : xhr.responseText
+      resolve(new Response(body, options))
+    }
+
+    xhr.onerror = function() {
+      reject(new TypeError('Network request failed'))
+    }
+
+    xhr.ontimeout = function() {
+      reject(new TypeError('Network request failed'))
+    }
+
+    xhr.onabort = function() {
+      reject(new DOMException('Aborted', 'AbortError'))
+    }
+
+    xhr.open(request.method, request.url, true)
+
+    if (request.credentials === 'include') {
+      xhr.withCredentials = true
+    } else if (request.credentials === 'omit') {
+      xhr.withCredentials = false
+    }
+
+    if ('responseType' in xhr && support.blob) {
+      xhr.responseType = 'blob'
+    }
+
+    request.headers.forEach(function(value, name) {
+      xhr.setRequestHeader(name, value)
+    })
+
+    if (request.signal) {
+      request.signal.addEventListener('abort', abortXhr)
+
+      xhr.onreadystatechange = function() {
+        // DONE (success or failure)
+        if (xhr.readyState === 4) {
+          request.signal.removeEventListener('abort', abortXhr)
+        }
+      }
+    }
+
+    xhr.send(typeof request._bodyInit === 'undefined' ? null : request._bodyInit)
+  })
+}
+
+fetch.polyfill = true
+
+if (!self.fetch) {
+  self.fetch = fetch
+  self.Headers = Headers
+  self.Request = Request
+  self.Response = Response
+}

express-server/node_modules/whatwg-fetch/fetch.js.flow

@@ -0,0 +1,119 @@
+/* @flow strict */
+
+type CredentialsType = 'omit' | 'same-origin' | 'include'
+
+type ResponseType =  'default' | 'error'
+
+type BodyInit = string | URLSearchParams | FormData | Blob | ArrayBuffer | $ArrayBufferView
+
+type RequestInfo = Request | URL | string
+
+type RequestOptions = {|
+  body?: ?BodyInit;
+
+  credentials?: CredentialsType;
+  headers?: HeadersInit;
+  method?: string;
+  mode?: string;
+  referrer?: string;
+  signal?: ?AbortSignal;
+|}
+
+type ResponseOptions = {|
+  status?: number;
+  statusText?: string;
+  headers?: HeadersInit;
+|}
+
+type HeadersInit = Headers | {[string]: string}
+
+// https://github.com/facebook/flow/blob/f68b89a5012bd995ab3509e7a41b7325045c4045/lib/bom.js#L902-L914
+declare class Headers {
+  @@iterator(): Iterator<[string, string]>;
+  constructor(init?: HeadersInit): void;
+  append(name: string, value: string): void;
+  delete(name: string): void;
+  entries(): Iterator<[string, string]>;
+  forEach((value: string, name: string, headers: Headers) => any, thisArg?: any): void;
+  get(name: string): null | string;
+  has(name: string): boolean;
+  keys(): Iterator<string>;
+  set(name: string, value: string): void;
+  values(): Iterator<string>;
+}
+
+// https://github.com/facebook/flow/pull/6548
+interface AbortSignal {
+  aborted: boolean;
+  addEventListener(type: string, listener: (Event) => mixed, options?: EventListenerOptionsOrUseCapture): void;
+  removeEventListener(type: string, listener: (Event) => mixed, options?: EventListenerOptionsOrUseCapture): void;
+}
+
+// https://github.com/facebook/flow/blob/f68b89a5012bd995ab3509e7a41b7325045c4045/lib/bom.js#L994-L1018
+// unsupported in polyfill:
+// - cache
+// - integrity
+// - redirect
+// - referrerPolicy
+declare class Request {
+  constructor(input: RequestInfo, init?: RequestOptions): void;
+  clone(): Request;
+
+  url: string;
+
+  credentials: CredentialsType;
+  headers: Headers;
+  method: string;
+  mode: ModeType;
+  referrer: string;
+  signal: ?AbortSignal;
+
+  // Body methods and attributes
+  bodyUsed: boolean;
+
+  arrayBuffer(): Promise<ArrayBuffer>;
+  blob(): Promise<Blob>;
+  formData(): Promise<FormData>;
+  json(): Promise<any>;
+  text(): Promise<string>;
+}
+
+// https://github.com/facebook/flow/blob/f68b89a5012bd995ab3509e7a41b7325045c4045/lib/bom.js#L968-L992
+// unsupported in polyfill:
+// - body
+// - redirected
+// - trailer
+declare class Response {
+  constructor(input?: ?BodyInit, init?: ResponseOptions): void;
+  clone(): Response;
+  static error(): Response;
+  static redirect(url: string, status?: number): Response;
+
+  type: ResponseType;
+  url: string;
+  ok: boolean;
+  status: number;
+  statusText: string;
+  headers: Headers;
+
+  // Body methods and attributes
+  bodyUsed: boolean;
+
+  arrayBuffer(): Promise<ArrayBuffer>;
+  blob(): Promise<Blob>;
+  formData(): Promise<FormData>;
+  json(): Promise<any>;
+  text(): Promise<string>;
+}
+
+declare class DOMException extends Error {
+  constructor(message?: string, name?: string): void;
+}
+
+declare module.exports: {
+  fetch(input: RequestInfo, init?: RequestOptions): Promise<Response>;
+  Headers: typeof Headers;
+  Request: typeof Request;
+  Response: typeof Response;
+  DOMException: typeof DOMException;
+}

express-server/node_modules/whatwg-fetch/package.json

@@ -0,0 +1,72 @@
+{
+  "_from": "whatwg-fetch@>=0.10.0",
+  "_id": "whatwg-fetch@3.0.0",
+  "_inBundle": false,
+  "_integrity": "sha512-9GSJUgz1D4MfyKU7KRqwOjXCXTqWdFNvEr7eUBYchQiVc744mqK/MzXPNR2WsPkmkOa4ywfg8C2n8h+13Bey1Q==",
+  "_location": "/whatwg-fetch",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "whatwg-fetch@>=0.10.0",
+    "name": "whatwg-fetch",
+    "escapedName": "whatwg-fetch",
+    "rawSpec": ">=0.10.0",
+    "saveSpec": null,
+    "fetchSpec": ">=0.10.0"
+  },
+  "_requiredBy": [
+    "/isomorphic-fetch"
+  ],
+  "_resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz",
+  "_shasum": "fc804e458cc460009b1a2b966bc8817d2578aefb",
+  "_spec": "whatwg-fetch@>=0.10.0",
+  "_where": "D:\\Desktop\\smartshopperNodeReworkFirebase\\node_modules\\isomorphic-fetch",
+  "bugs": {
+    "url": "https://github.com/github/fetch/issues"
+  },
+  "bundleDependencies": false,
+  "deprecated": false,
+  "description": "A window.fetch polyfill.",
+  "devDependencies": {
+    "abortcontroller-polyfill": "^1.1.9",
+    "chai": "^4.1.2",
+    "eslint": "^4.19.1",
+    "eslint-plugin-github": "^1.0.0",
+    "karma": "^3.0.0",
+    "karma-chai": "^0.1.0",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-detect-browsers": "^2.3.2",
+    "karma-firefox-launcher": "^1.1.0",
+    "karma-mocha": "^1.3.0",
+    "karma-safari-launcher": "^1.0.0",
+    "karma-safaritechpreview-launcher": "0.0.6",
+    "mocha": "^4.0.1",
+    "promise-polyfill": "6.0.2",
+    "rollup": "^0.59.1",
+    "url-search-params": "0.6.1"
+  },
+  "files": [
+    "LICENSE",
+    "dist/fetch.umd.js",
+    "dist/fetch.umd.js.flow",
+    "fetch.js",
+    "fetch.js.flow"
+  ],
+  "homepage": "https://github.com/github/fetch#readme",
+  "license": "MIT",
+  "main": "./dist/fetch.umd.js",
+  "module": "./fetch.js",
+  "name": "whatwg-fetch",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/github/fetch.git"
+  },
+  "scripts": {
+    "karma": "karma start ./test/karma.config.js --no-single-run --auto-watch",
+    "prepare": "make dist/fetch.umd.js dist/fetch.umd.js.flow",
+    "pretest": "make",
+    "test": "karma start ./test/karma.config.js && karma start ./test/karma-worker.config.js"
+  },
+  "version": "3.0.0"
+}