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node_modules/jsdom/lib/api.js

@@ -0,0 +1,333 @@
+"use strict";
+const path = require("path");
+const fs = require("fs").promises;
+const vm = require("vm");
+const toughCookie = require("tough-cookie");
+const sniffHTMLEncoding = require("html-encoding-sniffer");
+const whatwgURL = require("whatwg-url");
+const whatwgEncoding = require("whatwg-encoding");
+const { URL } = require("whatwg-url");
+const MIMEType = require("whatwg-mimetype");
+const idlUtils = require("./jsdom/living/generated/utils.js");
+const VirtualConsole = require("./jsdom/virtual-console.js");
+const { createWindow } = require("./jsdom/browser/Window.js");
+const { parseIntoDocument } = require("./jsdom/browser/parser");
+const { fragmentSerialization } = require("./jsdom/living/domparsing/serialization.js");
+const ResourceLoader = require("./jsdom/browser/resources/resource-loader.js");
+const NoOpResourceLoader = require("./jsdom/browser/resources/no-op-resource-loader.js");
+
+class CookieJar extends toughCookie.CookieJar {
+  constructor(store, options) {
+    // jsdom cookie jars must be loose by default
+    super(store, { looseMode: true, ...options });
+  }
+}
+
+const window = Symbol("window");
+let sharedFragmentDocument = null;
+
+class JSDOM {
+  constructor(input = "", options = {}) {
+    const mimeType = new MIMEType(options.contentType === undefined ? "text/html" : options.contentType);
+    const { html, encoding } = normalizeHTML(input, mimeType);
+
+    options = transformOptions(options, encoding, mimeType);
+
+    this[window] = createWindow(options.windowOptions);
+
+    const documentImpl = idlUtils.implForWrapper(this[window]._document);
+
+    options.beforeParse(this[window]._globalProxy);
+
+    parseIntoDocument(html, documentImpl);
+
+    documentImpl.close();
+  }
+
+  get window() {
+    // It's important to grab the global proxy, instead of just the result of `createWindow(...)`, since otherwise
+    // things like `window.eval` don't exist.
+    return this[window]._globalProxy;
+  }
+
+  get virtualConsole() {
+    return this[window]._virtualConsole;
+  }
+
+  get cookieJar() {
+    // TODO NEWAPI move _cookieJar to window probably
+    return idlUtils.implForWrapper(this[window]._document)._cookieJar;
+  }
+
+  serialize() {
+    return fragmentSerialization(idlUtils.implForWrapper(this[window]._document), { requireWellFormed: false });
+  }
+
+  nodeLocation(node) {
+    if (!idlUtils.implForWrapper(this[window]._document)._parseOptions.sourceCodeLocationInfo) {
+      throw new Error("Location information was not saved for this jsdom. Use includeNodeLocations during creation.");
+    }
+
+    return idlUtils.implForWrapper(node).sourceCodeLocation;
+  }
+
+  getInternalVMContext() {
+    if (!vm.isContext(this[window])) {
+      throw new TypeError("This jsdom was not configured to allow script running. " +
+        "Use the runScripts option during creation.");
+    }
+
+    return this[window];
+  }
+
+  reconfigure(settings) {
+    if ("windowTop" in settings) {
+      this[window]._top = settings.windowTop;
+    }
+
+    if ("url" in settings) {
+      const document = idlUtils.implForWrapper(this[window]._document);
+
+      const url = whatwgURL.parseURL(settings.url);
+      if (url === null) {
+        throw new TypeError(`Could not parse "${settings.url}" as a URL`);
+      }
+
+      document._URL = url;
+      document._origin = whatwgURL.serializeURLOrigin(document._URL);
+    }
+  }
+
+  static fragment(string = "") {
+    if (!sharedFragmentDocument) {
+      sharedFragmentDocument = (new JSDOM()).window.document;
+    }
+
+    const template = sharedFragmentDocument.createElement("template");
+    template.innerHTML = string;
+    return template.content;
+  }
+
+  static fromURL(url, options = {}) {
+    return Promise.resolve().then(() => {
+      // Remove the hash while sending this through the research loader fetch().
+      // It gets added back a few lines down when constructing the JSDOM object.
+      const parsedURL = new URL(url);
+      const originalHash = parsedURL.hash;
+      parsedURL.hash = "";
+      url = parsedURL.href;
+
+      options = normalizeFromURLOptions(options);
+
+      const resourceLoader = resourcesToResourceLoader(options.resources);
+      const resourceLoaderForInitialRequest = resourceLoader.constructor === NoOpResourceLoader ?
+        new ResourceLoader() :
+        resourceLoader;
+
+      const req = resourceLoaderForInitialRequest.fetch(url, {
+        accept: "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+        cookieJar: options.cookieJar,
+        referrer: options.referrer
+      });
+
+      return req.then(body => {
+        const res = req.response;
+
+        options = Object.assign(options, {
+          url: req.href + originalHash,
+          contentType: res.headers["content-type"],
+          referrer: req.getHeader("referer")
+        });
+
+        return new JSDOM(body, options);
+      });
+    });
+  }
+
+  static async fromFile(filename, options = {}) {
+    options = normalizeFromFileOptions(filename, options);
+    const buffer = await fs.readFile(filename);
+
+    return new JSDOM(buffer, options);
+  }
+}
+
+function normalizeFromURLOptions(options) {
+  // Checks on options that are invalid for `fromURL`
+  if (options.url !== undefined) {
+    throw new TypeError("Cannot supply a url option when using fromURL");
+  }
+  if (options.contentType !== undefined) {
+    throw new TypeError("Cannot supply a contentType option when using fromURL");
+  }
+
+  // Normalization of options which must be done before the rest of the fromURL code can use them, because they are
+  // given to request()
+  const normalized = { ...options };
+
+  if (options.referrer !== undefined) {
+    normalized.referrer = (new URL(options.referrer)).href;
+  }
+
+  if (options.cookieJar === undefined) {
+    normalized.cookieJar = new CookieJar();
+  }
+
+  return normalized;
+
+  // All other options don't need to be processed yet, and can be taken care of in the normal course of things when
+  // `fromURL` calls `new JSDOM(html, options)`.
+}
+
+function normalizeFromFileOptions(filename, options) {
+  const normalized = { ...options };
+
+  if (normalized.contentType === undefined) {
+    const extname = path.extname(filename);
+    if (extname === ".xhtml" || extname === ".xht" || extname === ".xml") {
+      normalized.contentType = "application/xhtml+xml";
+    }
+  }
+
+  if (normalized.url === undefined) {
+    normalized.url = new URL("file:" + path.resolve(filename));
+  }
+
+  return normalized;
+}
+
+function transformOptions(options, encoding, mimeType) {
+  const transformed = {
+    windowOptions: {
+      // Defaults
+      url: "about:blank",
+      referrer: "",
+      contentType: "text/html",
+      parsingMode: "html",
+      parseOptions: {
+        sourceCodeLocationInfo: false,
+        scriptingEnabled: false
+      },
+      runScripts: undefined,
+      encoding,
+      pretendToBeVisual: false,
+      storageQuota: 5000000,
+
+      // Defaults filled in later
+      resourceLoader: undefined,
+      virtualConsole: undefined,
+      cookieJar: undefined
+    },
+
+    // Defaults
+    beforeParse() { }
+  };
+
+  // options.contentType was parsed into mimeType by the caller.
+  if (!mimeType.isHTML() && !mimeType.isXML()) {
+    throw new RangeError(`The given content type of "${options.contentType}" was not a HTML or XML content type`);
+  }
+
+  transformed.windowOptions.contentType = mimeType.essence;
+  transformed.windowOptions.parsingMode = mimeType.isHTML() ? "html" : "xml";
+
+  if (options.url !== undefined) {
+    transformed.windowOptions.url = (new URL(options.url)).href;
+  }
+
+  if (options.referrer !== undefined) {
+    transformed.windowOptions.referrer = (new URL(options.referrer)).href;
+  }
+
+  if (options.includeNodeLocations) {
+    if (transformed.windowOptions.parsingMode === "xml") {
+      throw new TypeError("Cannot set includeNodeLocations to true with an XML content type");
+    }
+
+    transformed.windowOptions.parseOptions = { sourceCodeLocationInfo: true };
+  }
+
+  transformed.windowOptions.cookieJar = options.cookieJar === undefined ?
+                                       new CookieJar() :
+                                       options.cookieJar;
+
+  transformed.windowOptions.virtualConsole = options.virtualConsole === undefined ?
+                                            (new VirtualConsole()).sendTo(console) :
+                                            options.virtualConsole;
+
+  if (!(transformed.windowOptions.virtualConsole instanceof VirtualConsole)) {
+    throw new TypeError("virtualConsole must be an instance of VirtualConsole");
+  }
+
+  transformed.windowOptions.resourceLoader = resourcesToResourceLoader(options.resources);
+
+  if (options.runScripts !== undefined) {
+    transformed.windowOptions.runScripts = String(options.runScripts);
+    if (transformed.windowOptions.runScripts === "dangerously") {
+      transformed.windowOptions.parseOptions.scriptingEnabled = true;
+    } else if (transformed.windowOptions.runScripts !== "outside-only") {
+      throw new RangeError(`runScripts must be undefined, "dangerously", or "outside-only"`);
+    }
+  }
+
+  if (options.beforeParse !== undefined) {
+    transformed.beforeParse = options.beforeParse;
+  }
+
+  if (options.pretendToBeVisual !== undefined) {
+    transformed.windowOptions.pretendToBeVisual = Boolean(options.pretendToBeVisual);
+  }
+
+  if (options.storageQuota !== undefined) {
+    transformed.windowOptions.storageQuota = Number(options.storageQuota);
+  }
+
+  return transformed;
+}
+
+function normalizeHTML(html, mimeType) {
+  let encoding = "UTF-8";
+
+  if (ArrayBuffer.isView(html)) {
+    html = Buffer.from(html.buffer, html.byteOffset, html.byteLength);
+  } else if (html instanceof ArrayBuffer) {
+    html = Buffer.from(html);
+  }
+
+  if (Buffer.isBuffer(html)) {
+    encoding = sniffHTMLEncoding(html, {
+      defaultEncoding: mimeType.isXML() ? "UTF-8" : "windows-1252",
+      transportLayerEncodingLabel: mimeType.parameters.get("charset")
+    });
+    html = whatwgEncoding.decode(html, encoding);
+  } else {
+    html = String(html);
+  }
+
+  return { html, encoding };
+}
+
+function resourcesToResourceLoader(resources) {
+  switch (resources) {
+    case undefined: {
+      return new NoOpResourceLoader();
+    }
+    case "usable": {
+      return new ResourceLoader();
+    }
+    default: {
+      if (!(resources instanceof ResourceLoader)) {
+        throw new TypeError("resources must be an instance of ResourceLoader");
+      }
+      return resources;
+    }
+  }
+}
+
+exports.JSDOM = JSDOM;
+
+exports.VirtualConsole = VirtualConsole;
+exports.CookieJar = CookieJar;
+exports.ResourceLoader = ResourceLoader;
+
+exports.toughCookie = toughCookie;

node_modules/jsdom/lib/jsdom/browser/js-globals.json

@@ -0,0 +1,307 @@
+{
+  "Object": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Function": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Number": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "parseFloat": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "parseInt": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Infinity": {
+    "writable": false,
+    "enumerable": false,
+    "configurable": false
+  },
+  "NaN": {
+    "writable": false,
+    "enumerable": false,
+    "configurable": false
+  },
+  "undefined": {
+    "writable": false,
+    "enumerable": false,
+    "configurable": false
+  },
+  "Boolean": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "String": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Symbol": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Date": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Promise": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "RegExp": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Error": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "AggregateError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "EvalError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "RangeError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "ReferenceError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "SyntaxError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "TypeError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "URIError": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "globalThis": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "JSON": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Math": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Intl": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "ArrayBuffer": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Uint8Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Int8Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Uint16Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Int16Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Uint32Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Int32Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Float32Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Float64Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Uint8ClampedArray": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "BigUint64Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "BigInt64Array": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "DataView": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Map": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "BigInt": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Set": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "WeakMap": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "WeakSet": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Proxy": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Reflect": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "FinalizationRegistry": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "WeakRef": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "decodeURI": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "decodeURIComponent": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "encodeURI": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "encodeURIComponent": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "escape": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "unescape": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "eval": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "isFinite": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "isNaN": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "SharedArrayBuffer": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "Atomics": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  },
+  "WebAssembly": {
+    "writable": true,
+    "enumerable": false,
+    "configurable": true
+  }
+}

node_modules/jsdom/lib/jsdom/browser/not-implemented.js

@@ -0,0 +1,13 @@
+"use strict";
+
+module.exports = function (nameForErrorMessage, window) {
+  if (!window) {
+    // Do nothing for window-less documents.
+    return;
+  }
+
+  const error = new Error(`Not implemented: ${nameForErrorMessage}`);
+  error.type = "not implemented";
+
+  window._virtualConsole.emit("jsdomError", error);
+};

node_modules/jsdom/lib/jsdom/browser/parser/html.js

@@ -0,0 +1,208 @@
+"use strict";
+
+const parse5 = require("parse5");
+
+const { createElement } = require("../../living/helpers/create-element");
+const { HTML_NS } = require("../../living/helpers/namespaces");
+
+const DocumentType = require("../../living/generated/DocumentType");
+const DocumentFragment = require("../../living/generated/DocumentFragment");
+const Text = require("../../living/generated/Text");
+const Comment = require("../../living/generated/Comment");
+
+const attributes = require("../../living/attributes");
+const nodeTypes = require("../../living/node-type");
+
+const serializationAdapter = require("../../living/domparsing/parse5-adapter-serialization");
+const {
+  customElementReactionsStack, invokeCEReactions, lookupCEDefinition
+} = require("../../living/helpers/custom-elements");
+
+
+class JSDOMParse5Adapter {
+  constructor(documentImpl, options = {}) {
+    this._documentImpl = documentImpl;
+    this._globalObject = documentImpl._globalObject;
+    this._fragment = options.fragment || false;
+
+    // Since the createElement hook doesn't provide the parent element, we keep track of this using _currentElement:
+    // https://github.com/inikulin/parse5/issues/285.
+    this._currentElement = undefined;
+  }
+
+  _ownerDocument() {
+    const { _currentElement } = this;
+
+    // The _currentElement is undefined when parsing elements at the root of the document.
+    if (_currentElement) {
+      return _currentElement.localName === "template" && _currentElement.namespaceURI === HTML_NS ?
+        _currentElement.content._ownerDocument :
+        _currentElement._ownerDocument;
+    }
+
+    return this._documentImpl;
+  }
+
+  createDocument() {
+    // parse5's model assumes that parse(html) will call into here to create the new Document, then return it. However,
+    // jsdom's model assumes we can create a Window (and through that create an empty Document), do some other setup
+    // stuff, and then parse, stuffing nodes into that Document as we go. So to adapt between these two models, we just
+    // return the already-created Document when asked by parse5 to "create" a Document.
+    return this._documentImpl;
+  }
+
+  createDocumentFragment() {
+    const ownerDocument = this._ownerDocument();
+    return DocumentFragment.createImpl(this._globalObject, [], { ownerDocument });
+  }
+
+  // https://html.spec.whatwg.org/#create-an-element-for-the-token
+  createElement(localName, namespace, attrs) {
+    const ownerDocument = this._ownerDocument();
+
+    const isAttribute = attrs.find(attr => attr.name === "is");
+    const isValue = isAttribute ? isAttribute.value : null;
+
+    const definition = lookupCEDefinition(ownerDocument, namespace, localName);
+
+    let willExecuteScript = false;
+    if (definition !== null && !this._fragment) {
+      willExecuteScript = true;
+    }
+
+    if (willExecuteScript) {
+      ownerDocument._throwOnDynamicMarkupInsertionCounter++;
+      customElementReactionsStack.push([]);
+    }
+
+    const element = createElement(ownerDocument, localName, namespace, null, isValue, willExecuteScript);
+    this.adoptAttributes(element, attrs);
+
+    if (willExecuteScript) {
+      const queue = customElementReactionsStack.pop();
+      invokeCEReactions(queue);
+      ownerDocument._throwOnDynamicMarkupInsertionCounter--;
+    }
+
+    if ("_parserInserted" in element) {
+      element._parserInserted = true;
+    }
+
+    return element;
+  }
+
+  createCommentNode(data) {
+    const ownerDocument = this._ownerDocument();
+    return Comment.createImpl(this._globalObject, [], { data, ownerDocument });
+  }
+
+  appendChild(parentNode, newNode) {
+    parentNode._append(newNode);
+  }
+
+  insertBefore(parentNode, newNode, referenceNode) {
+    parentNode._insert(newNode, referenceNode);
+  }
+
+  setTemplateContent(templateElement, contentFragment) {
+    // This code makes the glue between jsdom and parse5 HTMLTemplateElement parsing:
+    //
+    // * jsdom during the construction of the HTMLTemplateElement (for example when create via
+    //   `document.createElement("template")`), creates a DocumentFragment and set it into _templateContents.
+    // * parse5 when parsing a <template> tag creates an HTMLTemplateElement (`createElement` adapter hook) and also
+    //   create a DocumentFragment (`createDocumentFragment` adapter hook).
+    //
+    // At this point we now have to replace the one created in jsdom with one created by parse5.
+    const { _ownerDocument, _host } = templateElement._templateContents;
+    contentFragment._ownerDocument = _ownerDocument;
+    contentFragment._host = _host;
+
+    templateElement._templateContents = contentFragment;
+  }
+
+  setDocumentType(document, name, publicId, systemId) {
+    const ownerDocument = this._ownerDocument();
+    const documentType = DocumentType.createImpl(this._globalObject, [], { name, publicId, systemId, ownerDocument });
+
+    document._append(documentType);
+  }
+
+  setDocumentMode(document, mode) {
+    // TODO: the rest of jsdom ignores this
+    document._mode = mode;
+  }
+
+  detachNode(node) {
+    node.remove();
+  }
+
+  insertText(parentNode, text) {
+    const { lastChild } = parentNode;
+    if (lastChild && lastChild.nodeType === nodeTypes.TEXT_NODE) {
+      lastChild.data += text;
+    } else {
+      const ownerDocument = this._ownerDocument();
+      const textNode = Text.createImpl(this._globalObject, [], { data: text, ownerDocument });
+      parentNode._append(textNode);
+    }
+  }
+
+  insertTextBefore(parentNode, text, referenceNode) {
+    const { previousSibling } = referenceNode;
+    if (previousSibling && previousSibling.nodeType === nodeTypes.TEXT_NODE) {
+      previousSibling.data += text;
+    } else {
+      const ownerDocument = this._ownerDocument();
+      const textNode = Text.createImpl(this._globalObject, [], { data: text, ownerDocument });
+      parentNode._append(textNode, referenceNode);
+    }
+  }
+
+  adoptAttributes(element, attrs) {
+    for (const attr of attrs) {
+      const prefix = attr.prefix === "" ? null : attr.prefix;
+      attributes.setAttributeValue(element, attr.name, attr.value, prefix, attr.namespace);
+    }
+  }
+
+  onItemPush(after) {
+    this._currentElement = after;
+    after._pushedOnStackOfOpenElements?.();
+  }
+
+  onItemPop(before, newTop) {
+    this._currentElement = newTop;
+    before._poppedOffStackOfOpenElements?.();
+  }
+}
+
+// Assign shared adapters with serializer.
+Object.assign(JSDOMParse5Adapter.prototype, serializationAdapter);
+
+function parseFragment(markup, contextElement) {
+  const ownerDocument = contextElement.localName === "template" && contextElement.namespaceURI === HTML_NS ?
+    contextElement.content._ownerDocument :
+    contextElement._ownerDocument;
+
+  const config = {
+    ...ownerDocument._parseOptions,
+    sourceCodeLocationInfo: false,
+    treeAdapter: new JSDOMParse5Adapter(ownerDocument, { fragment: true })
+  };
+
+  return parse5.parseFragment(contextElement, markup, config);
+}
+
+function parseIntoDocument(markup, ownerDocument) {
+  const config = {
+    ...ownerDocument._parseOptions,
+    treeAdapter: new JSDOMParse5Adapter(ownerDocument)
+  };
+
+  return parse5.parse(markup, config);
+}
+
+module.exports = {
+  parseFragment,
+  parseIntoDocument
+};

node_modules/jsdom/lib/jsdom/browser/parser/index.js

@@ -0,0 +1,37 @@
+"use strict";
+
+const xmlParser = require("./xml");
+const htmlParser = require("./html");
+
+// https://w3c.github.io/DOM-Parsing/#dfn-fragment-parsing-algorithm
+function parseFragment(markup, contextElement) {
+  const { _parsingMode } = contextElement._ownerDocument;
+
+  let parseAlgorithm;
+  if (_parsingMode === "html") {
+    parseAlgorithm = htmlParser.parseFragment;
+  } else if (_parsingMode === "xml") {
+    parseAlgorithm = xmlParser.parseFragment;
+  }
+
+  // Note: HTML and XML fragment parsing algorithm already return a document fragments; no need to do steps 3 and 4
+  return parseAlgorithm(markup, contextElement);
+}
+
+function parseIntoDocument(markup, ownerDocument) {
+  const { _parsingMode } = ownerDocument;
+
+  let parseAlgorithm;
+  if (_parsingMode === "html") {
+    parseAlgorithm = htmlParser.parseIntoDocument;
+  } else if (_parsingMode === "xml") {
+    parseAlgorithm = xmlParser.parseIntoDocument;
+  }
+
+  return parseAlgorithm(markup, ownerDocument);
+}
+
+module.exports = {
+  parseFragment,
+  parseIntoDocument
+};

node_modules/jsdom/lib/jsdom/browser/parser/xml.js

@@ -0,0 +1,202 @@
+"use strict";
+
+const { SaxesParser } = require("saxes");
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const { createElement } = require("../../living/helpers/create-element");
+
+const DocumentFragment = require("../../living/generated/DocumentFragment");
+const DocumentType = require("../../living/generated/DocumentType");
+const CDATASection = require("../../living/generated/CDATASection");
+const Comment = require("../../living/generated/Comment");
+const ProcessingInstruction = require("../../living/generated/ProcessingInstruction");
+const Text = require("../../living/generated/Text");
+
+const attributes = require("../../living/attributes");
+const { HTML_NS } = require("../../living/helpers/namespaces");
+
+const HTML5_DOCTYPE = /<!doctype html>/i;
+const PUBLIC_DOCTYPE = /<!doctype\s+([^\s]+)\s+public\s+"([^"]+)"\s+"([^"]+)"/i;
+const SYSTEM_DOCTYPE = /<!doctype\s+([^\s]+)\s+system\s+"([^"]+)"/i;
+const CUSTOM_NAME_DOCTYPE = /<!doctype\s+([^\s>]+)/i;
+
+function parseDocType(globalObject, ownerDocument, html) {
+  if (HTML5_DOCTYPE.test(html)) {
+    return createDocumentType(globalObject, ownerDocument, "html", "", "");
+  }
+
+  const publicPieces = PUBLIC_DOCTYPE.exec(html);
+  if (publicPieces) {
+    return createDocumentType(globalObject, ownerDocument, publicPieces[1], publicPieces[2], publicPieces[3]);
+  }
+
+  const systemPieces = SYSTEM_DOCTYPE.exec(html);
+  if (systemPieces) {
+    return createDocumentType(globalObject, ownerDocument, systemPieces[1], "", systemPieces[2]);
+  }
+
+  const namePiece = CUSTOM_NAME_DOCTYPE.exec(html)[1] || "html";
+  return createDocumentType(globalObject, ownerDocument, namePiece, "", "");
+}
+
+function createDocumentType(globalObject, ownerDocument, name, publicId, systemId) {
+  return DocumentType.createImpl(globalObject, [], { ownerDocument, name, publicId, systemId });
+}
+
+function isHTMLTemplateElement(element) {
+  return element.tagName === "template" && element.namespaceURI === HTML_NS;
+}
+
+
+function createParser(rootNode, globalObject, saxesOptions) {
+  const parser = new SaxesParser({
+    ...saxesOptions,
+    // Browsers always have namespace support.
+    xmlns: true,
+    // We force the parser to treat all documents (even documents declaring themselves to be XML 1.1 documents) as XML
+    // 1.0 documents. See https://github.com/jsdom/jsdom/issues/2677 for a discussion of the stakes.
+    defaultXMLVersion: "1.0",
+    forceXMLVersion: true
+  });
+  const openStack = [rootNode];
+
+  function getOwnerDocument() {
+    const currentElement = openStack[openStack.length - 1];
+
+    return isHTMLTemplateElement(currentElement) ?
+      currentElement._templateContents._ownerDocument :
+      currentElement._ownerDocument;
+  }
+
+  function appendChild(child) {
+    const parentElement = openStack[openStack.length - 1];
+
+    if (isHTMLTemplateElement(parentElement)) {
+      parentElement._templateContents._insert(child, null);
+    } else {
+      parentElement._insert(child, null);
+    }
+  }
+
+  parser.on("text", saxesOptions.fragment ?
+    // In a fragment, all text events produced by saxes must result in a text
+    // node.
+    data => {
+      const ownerDocument = getOwnerDocument();
+      appendChild(Text.createImpl(globalObject, [], { data, ownerDocument }));
+    } :
+    // When parsing a whole document, we must ignore those text nodes that are
+    // produced outside the root element. Saxes produces events for them,
+    // but DOM trees do not record text outside the root element.
+    data => {
+      if (openStack.length > 1) {
+        const ownerDocument = getOwnerDocument();
+        appendChild(Text.createImpl(globalObject, [], { data, ownerDocument }));
+      }
+    });
+
+  parser.on("cdata", data => {
+    const ownerDocument = getOwnerDocument();
+    appendChild(CDATASection.createImpl(globalObject, [], { data, ownerDocument }));
+  });
+
+  parser.on("opentag", tag => {
+    const { local: tagLocal, attributes: tagAttributes } = tag;
+
+    const ownerDocument = getOwnerDocument();
+    const tagNamespace = tag.uri === "" ? null : tag.uri;
+    const tagPrefix = tag.prefix === "" ? null : tag.prefix;
+    const isValue = tagAttributes.is === undefined ? null : tagAttributes.is.value;
+
+    const elem = createElement(ownerDocument, tagLocal, tagNamespace, tagPrefix, isValue, true);
+
+    // We mark a script element as "parser-inserted", which prevents it from
+    // being immediately executed.
+    if (tagLocal === "script" && tagNamespace === HTML_NS) {
+      elem._parserInserted = true;
+    }
+
+    for (const key of Object.keys(tagAttributes)) {
+      const { prefix, local, uri, value } = tagAttributes[key];
+      attributes.setAttributeValue(elem, local, value, prefix === "" ? null : prefix, uri === "" ? null : uri);
+    }
+
+    appendChild(elem);
+    openStack.push(elem);
+  });
+
+  parser.on("closetag", () => {
+    const elem = openStack.pop();
+    // Once a script is populated, we can execute it.
+    if (elem.localName === "script" && elem.namespaceURI === HTML_NS) {
+      elem._eval();
+    }
+  });
+
+  parser.on("comment", data => {
+    const ownerDocument = getOwnerDocument();
+    appendChild(Comment.createImpl(globalObject, [], { data, ownerDocument }));
+  });
+
+  parser.on("processinginstruction", ({ target, body }) => {
+    const ownerDocument = getOwnerDocument();
+    appendChild(ProcessingInstruction.createImpl(globalObject, [], { target, data: body, ownerDocument }));
+  });
+
+  parser.on("doctype", dt => {
+    const ownerDocument = getOwnerDocument();
+    appendChild(parseDocType(globalObject, ownerDocument, `<!doctype ${dt}>`));
+
+    const entityMatcher = /<!ENTITY ([^ ]+) "([^"]+)">/g;
+    let result;
+    while ((result = entityMatcher.exec(dt))) {
+      const [, name, value] = result;
+      if (!(name in parser.ENTITIES)) {
+        parser.ENTITIES[name] = value;
+      }
+    }
+  });
+
+  parser.on("error", err => {
+    throw DOMException.create(globalObject, [err.message, "SyntaxError"]);
+  });
+
+  return parser;
+}
+
+function parseFragment(markup, contextElement) {
+  const { _globalObject, _ownerDocument } = contextElement;
+
+  const fragment = DocumentFragment.createImpl(_globalObject, [], { ownerDocument: _ownerDocument });
+
+  // Only parseFragment needs resolvePrefix per the saxes documentation:
+  // https://github.com/lddubeau/saxes#parsing-xml-fragments
+  const parser = createParser(fragment, _globalObject, {
+    fragment: true,
+    resolvePrefix(prefix) {
+      // saxes wants undefined as the return value if the prefix is not defined, not null.
+      return contextElement.lookupNamespaceURI(prefix) || undefined;
+    }
+  });
+
+  parser.write(markup).close();
+
+  return fragment;
+}
+
+function parseIntoDocument(markup, ownerDocument) {
+  const { _globalObject } = ownerDocument;
+
+  const parser = createParser(ownerDocument, _globalObject, {
+    fileName: ownerDocument.location && ownerDocument.location.href
+  });
+
+  parser.write(markup).close();
+
+  return ownerDocument;
+}
+
+module.exports = {
+  parseFragment,
+  parseIntoDocument
+};

node_modules/jsdom/lib/jsdom/browser/resources/async-resource-queue.js

@@ -0,0 +1,114 @@
+"use strict";
+
+class QueueItem {
+  constructor(onLoad, onError, dependentItem) {
+    this.onLoad = onLoad;
+    this.onError = onError;
+    this.data = null;
+    this.error = null;
+    this.dependentItem = dependentItem;
+  }
+}
+
+/**
+ * AsyncResourceQueue is the queue in charge of run the async scripts
+ * and notify when they finish.
+ */
+module.exports = class AsyncResourceQueue {
+  constructor() {
+    this.items = new Set();
+    this.dependentItems = new Set();
+  }
+
+  count() {
+    return this.items.size + this.dependentItems.size;
+  }
+
+  _notify() {
+    if (this._listener) {
+      this._listener();
+    }
+  }
+
+  _check(item) {
+    let promise;
+
+    if (item.onError && item.error) {
+      promise = item.onError(item.error);
+    } else if (item.onLoad && item.data) {
+      promise = item.onLoad(item.data);
+    }
+
+    promise
+      .then(() => {
+        this.items.delete(item);
+        this.dependentItems.delete(item);
+
+        if (this.count() === 0) {
+          this._notify();
+        }
+      });
+  }
+
+  setListener(listener) {
+    this._listener = listener;
+  }
+
+  push(request, onLoad, onError, dependentItem) {
+    const q = this;
+
+    const item = new QueueItem(onLoad, onError, dependentItem);
+
+    q.items.add(item);
+
+    return request
+      .then(data => {
+        item.data = data;
+
+        if (dependentItem && !dependentItem.finished) {
+          q.dependentItems.add(item);
+          return q.items.delete(item);
+        }
+
+        if (onLoad) {
+          return q._check(item);
+        }
+
+        q.items.delete(item);
+
+        if (q.count() === 0) {
+          q._notify();
+        }
+
+        return null;
+      })
+      .catch(err => {
+        item.error = err;
+
+        if (dependentItem && !dependentItem.finished) {
+          q.dependentItems.add(item);
+          return q.items.delete(item);
+        }
+
+        if (onError) {
+          return q._check(item);
+        }
+
+        q.items.delete(item);
+
+        if (q.count() === 0) {
+          q._notify();
+        }
+
+        return null;
+      });
+  }
+
+  notifyItem(syncItem) {
+    for (const item of this.dependentItems) {
+      if (item.dependentItem === syncItem) {
+        this._check(item);
+      }
+    }
+  }
+};

node_modules/jsdom/lib/jsdom/browser/resources/no-op-resource-loader.js

@@ -0,0 +1,8 @@
+"use strict";
+const ResourceLoader = require("./resource-loader.js");
+
+module.exports = class NoOpResourceLoader extends ResourceLoader {
+  fetch() {
+    return null;
+  }
+};

node_modules/jsdom/lib/jsdom/browser/resources/per-document-resource-loader.js

@@ -0,0 +1,95 @@
+"use strict";
+const idlUtils = require("../../living/generated/utils");
+const { fireAnEvent } = require("../../living/helpers/events");
+
+module.exports = class PerDocumentResourceLoader {
+  constructor(document) {
+    this._document = document;
+    this._defaultEncoding = document._encoding;
+    this._resourceLoader = document._defaultView ? document._defaultView._resourceLoader : null;
+    this._requestManager = document._requestManager;
+    this._queue = document._queue;
+    this._deferQueue = document._deferQueue;
+    this._asyncQueue = document._asyncQueue;
+  }
+
+  fetch(url, { element, onLoad, onError }) {
+    const request = this._resourceLoader.fetch(url, {
+      cookieJar: this._document._cookieJar,
+      element: idlUtils.wrapperForImpl(element),
+      referrer: this._document.URL
+    });
+
+    if (request === null) {
+      return null;
+    }
+
+    this._requestManager.add(request);
+
+    const onErrorWrapped = error => {
+      this._requestManager.remove(request);
+
+      if (onError) {
+        onError(error);
+      }
+
+      fireAnEvent("error", element);
+
+      const err = new Error(`Could not load ${element.localName}: "${url}"`);
+      err.type = "resource loading";
+      err.detail = error;
+
+      this._document._defaultView._virtualConsole.emit("jsdomError", err);
+
+      return Promise.resolve();
+    };
+
+    const onLoadWrapped = data => {
+      this._requestManager.remove(request);
+
+      this._addCookies(url, request.response ? request.response.headers : {});
+
+      try {
+        const result = onLoad ? onLoad(data) : undefined;
+
+        return Promise.resolve(result)
+          .then(() => {
+            fireAnEvent("load", element);
+
+            return Promise.resolve();
+          })
+          .catch(err => {
+            return onErrorWrapped(err);
+          });
+      } catch (err) {
+        return onErrorWrapped(err);
+      }
+    };
+
+    if (element.localName === "script" && element.hasAttributeNS(null, "async")) {
+      this._asyncQueue.push(request, onLoadWrapped, onErrorWrapped, this._queue.getLastScript());
+    } else if (element.localName === "script" && element.hasAttributeNS(null, "defer")) {
+      this._deferQueue.push(request, onLoadWrapped, onErrorWrapped, false, element);
+    } else {
+      this._queue.push(request, onLoadWrapped, onErrorWrapped, false, element);
+    }
+
+    return request;
+  }
+
+  _addCookies(url, headers) {
+    let cookies = headers["set-cookie"];
+
+    if (!cookies) {
+      return;
+    }
+
+    if (!Array.isArray(cookies)) {
+      cookies = [cookies];
+    }
+
+    cookies.forEach(cookie => {
+      this._document._cookieJar.setCookieSync(cookie, url, { http: true, ignoreError: true });
+    });
+  }
+};

node_modules/jsdom/lib/jsdom/browser/resources/request-manager.js

@@ -0,0 +1,33 @@
+"use strict";
+
+/**
+ * Manage all the request and it is able to abort
+ * all pending request.
+ */
+module.exports = class RequestManager {
+  constructor() {
+    this.openedRequests = [];
+  }
+
+  add(req) {
+    this.openedRequests.push(req);
+  }
+
+  remove(req) {
+    const idx = this.openedRequests.indexOf(req);
+    if (idx !== -1) {
+      this.openedRequests.splice(idx, 1);
+    }
+  }
+
+  close() {
+    for (const openedRequest of this.openedRequests) {
+      openedRequest.abort();
+    }
+    this.openedRequests = [];
+  }
+
+  size() {
+    return this.openedRequests.length;
+  }
+};

node_modules/jsdom/lib/jsdom/browser/resources/resource-loader.js

@@ -0,0 +1,142 @@
+"use strict";
+const fs = require("fs");
+const { fileURLToPath } = require("url");
+const { parseURL } = require("whatwg-url");
+const dataURLFromRecord = require("data-urls").fromURLRecord;
+const packageVersion = require("../../../../package.json").version;
+const agentFactory = require("../../living/helpers/agent-factory");
+const Request = require("../../living/helpers/http-request");
+
+const IS_BROWSER = Object.prototype.toString.call(process) !== "[object process]";
+
+module.exports = class ResourceLoader {
+  constructor({
+    strictSSL = true,
+    proxy = undefined,
+    userAgent = `Mozilla/5.0 (${process.platform || "unknown OS"}) AppleWebKit/537.36 ` +
+                `(KHTML, like Gecko) jsdom/${packageVersion}`
+  } = {}) {
+    this._strictSSL = strictSSL;
+    this._proxy = proxy;
+    this._userAgent = userAgent;
+  }
+
+  _readDataURL(urlRecord) {
+    const dataURL = dataURLFromRecord(urlRecord);
+    let timeoutId;
+    const promise = new Promise(resolve => {
+      timeoutId = setTimeout(resolve, 0, Buffer.from(dataURL.body));
+    });
+    promise.abort = () => {
+      if (timeoutId !== undefined) {
+        clearTimeout(timeoutId);
+      }
+    };
+    return promise;
+  }
+
+  _readFile(filePath) {
+    let readableStream, abort; // Native Promises doesn't have an "abort" method.
+
+    // Creating a promise for two reason:
+    //   1. fetch always return a promise.
+    //   2. We need to add an abort handler.
+    const promise = new Promise((resolve, reject) => {
+      readableStream = fs.createReadStream(filePath);
+      let data = Buffer.alloc(0);
+
+      abort = reject;
+
+      readableStream.on("error", reject);
+
+      readableStream.on("data", chunk => {
+        data = Buffer.concat([data, chunk]);
+      });
+
+      readableStream.on("end", () => {
+        resolve(data);
+      });
+    });
+
+    promise.abort = () => {
+      readableStream.destroy();
+      const error = new Error("request canceled by user");
+      error.isAbortError = true;
+      abort(error);
+    };
+
+    return promise;
+  }
+
+  fetch(urlString, { accept, cookieJar, referrer } = {}) {
+    const url = parseURL(urlString);
+
+    if (!url) {
+      return Promise.reject(new Error(`Tried to fetch invalid URL ${urlString}`));
+    }
+
+    switch (url.scheme) {
+      case "data": {
+        return this._readDataURL(url);
+      }
+
+      case "http":
+      case "https": {
+        const agents = agentFactory(this._proxy, this._strictSSL);
+        const headers = {
+          "User-Agent": this._userAgent,
+          "Accept-Language": "en",
+          "Accept-Encoding": "gzip",
+          "Accept": accept || "*/*"
+        };
+        if (referrer && !IS_BROWSER) {
+          headers.Referer = referrer;
+        }
+        const requestClient = new Request(
+          urlString,
+          { followRedirects: true, cookieJar, agents },
+          { headers }
+        );
+        const promise = new Promise((resolve, reject) => {
+          const accumulated = [];
+          requestClient.once("response", res => {
+            promise.response = res;
+            const { statusCode } = res;
+            // TODO This deviates from the spec when it comes to
+            // loading resources such as images
+            if (statusCode < 200 || statusCode > 299) {
+              requestClient.abort();
+              reject(new Error(`Resource was not loaded. Status: ${statusCode}`));
+            }
+          });
+          requestClient.on("data", chunk => {
+            accumulated.push(chunk);
+          });
+          requestClient.on("end", () => resolve(Buffer.concat(accumulated)));
+          requestClient.on("error", reject);
+        });
+        // The method fromURL in lib/api.js crashes without the following four
+        // properties defined on the Promise instance, causing the test suite to halt
+        requestClient.on("end", () => {
+          promise.href = requestClient.currentURL;
+        });
+        promise.abort = requestClient.abort.bind(requestClient);
+        promise.getHeader = name => headers[name] || requestClient.getHeader(name);
+        requestClient.end();
+        return promise;
+      }
+
+      case "file": {
+        try {
+          return this._readFile(fileURLToPath(urlString));
+        } catch (e) {
+          return Promise.reject(e);
+        }
+      }
+
+      default: {
+        return Promise.reject(new Error(`Tried to fetch URL ${urlString} with invalid scheme ${url.scheme}`));
+      }
+    }
+  }
+};

node_modules/jsdom/lib/jsdom/browser/resources/resource-queue.js

@@ -0,0 +1,142 @@
+"use strict";
+
+/**
+ * Queue for all the resources to be download except async scripts.
+ * Async scripts have their own queue AsyncResourceQueue.
+ */
+module.exports = class ResourceQueue {
+  constructor({ paused, asyncQueue } = {}) {
+    this.paused = Boolean(paused);
+    this._asyncQueue = asyncQueue;
+  }
+
+  getLastScript() {
+    let head = this.tail;
+
+    while (head) {
+      if (head.isScript) {
+        return head;
+      }
+      head = head.prev;
+    }
+
+    return null;
+  }
+
+  _moreScripts() {
+    let found = false;
+
+    let head = this.tail;
+    while (head && !found) {
+      found = head.isScript;
+      head = head.prev;
+    }
+
+    return found;
+  }
+
+  _notify() {
+    if (this._listener) {
+      this._listener();
+    }
+  }
+
+  setListener(listener) {
+    this._listener = listener;
+  }
+
+  push(request, onLoad, onError, keepLast, element) {
+    const isScript = element ? element.localName === "script" : false;
+
+    if (!request) {
+      if (isScript && !this._moreScripts()) {
+        return onLoad();
+      }
+
+      request = Promise.resolve();
+    }
+    const q = this;
+    const item = {
+      isScript,
+      err: null,
+      element,
+      fired: false,
+      data: null,
+      keepLast,
+      prev: q.tail,
+      check() {
+        if (!q.paused && !this.prev && this.fired) {
+          let promise;
+
+          if (this.err && onError) {
+            promise = onError(this.err);
+          }
+
+          if (!this.err && onLoad) {
+            promise = onLoad(this.data);
+          }
+
+          Promise.resolve(promise)
+            .then(() => {
+              if (this.next) {
+                this.next.prev = null;
+                this.next.check();
+              } else { // q.tail===this
+                q.tail = null;
+                q._notify();
+              }
+
+              this.finished = true;
+
+              if (q._asyncQueue) {
+                q._asyncQueue.notifyItem(this);
+              }
+            });
+        }
+      }
+    };
+    if (q.tail) {
+      if (q.tail.keepLast) {
+        // if the tail is the load event in document and we receive a new element to load
+        // we should add this new request before the load event.
+        if (q.tail.prev) {
+          q.tail.prev.next = item;
+        }
+        item.prev = q.tail.prev;
+        q.tail.prev = item;
+        item.next = q.tail;
+      } else {
+        q.tail.next = item;
+        q.tail = item;
+      }
+    } else {
+      q.tail = item;
+    }
+    return request
+      .then(data => {
+        item.fired = 1;
+        item.data = data;
+        item.check();
+      })
+      .catch(err => {
+        item.fired = true;
+        item.err = err;
+        item.check();
+      });
+  }
+
+  resume() {
+    if (!this.paused) {
+      return;
+    }
+    this.paused = false;
+
+    let head = this.tail;
+    while (head && head.prev) {
+      head = head.prev;
+    }
+    if (head) {
+      head.check();
+    }
+  }
+};

node_modules/jsdom/lib/jsdom/level2/style.js

@@ -0,0 +1,57 @@
+"use strict";
+const cssom = require("cssom");
+const cssstyle = require("cssstyle");
+
+exports.addToCore = core => {
+  // What works now:
+  // - Accessing the rules defined in individual stylesheets
+  // - Modifications to style content attribute are reflected in style property
+  // - Modifications to style property are reflected in style content attribute
+  // TODO
+  // - Modifications to style element's textContent are reflected in sheet property.
+  // - Modifications to style element's sheet property are reflected in textContent.
+  // - Modifications to link.href property are reflected in sheet property.
+  // - Less-used features of link: disabled
+  // - Less-used features of style: disabled, scoped, title
+  // - CSSOM-View
+  //   - getComputedStyle(): requires default stylesheet, cascading, inheritance,
+  //     filtering by @media (screen? print?), layout for widths/heights
+  // - Load events are not in the specs, but apparently some browsers
+  //   implement something. Should onload only fire after all @imports have been
+  //   loaded, or only the primary sheet?
+
+  core.StyleSheet = cssom.StyleSheet;
+  core.MediaList = cssom.MediaList;
+  core.CSSStyleSheet = cssom.CSSStyleSheet;
+  core.CSSRule = cssom.CSSRule;
+  core.CSSStyleRule = cssom.CSSStyleRule;
+  core.CSSMediaRule = cssom.CSSMediaRule;
+  core.CSSImportRule = cssom.CSSImportRule;
+  core.CSSStyleDeclaration = cssstyle.CSSStyleDeclaration;
+
+  // Relevant specs
+  // http://www.w3.org/TR/DOM-Level-2-Style (2000)
+  // http://www.w3.org/TR/cssom-view/ (2008)
+  // http://dev.w3.org/csswg/cssom/ (2010) Meant to replace DOM Level 2 Style
+  // http://www.whatwg.org/specs/web-apps/current-work/multipage/ HTML5, of course
+  // http://dev.w3.org/csswg/css-style-attr/  not sure what's new here
+
+  // Objects that aren't in cssom library but should be:
+  //   CSSRuleList  (cssom just uses array)
+  //   CSSFontFaceRule
+  //   CSSPageRule
+
+  // These rules don't really make sense to implement, so CSSOM draft makes them
+  // obsolete.
+  //   CSSCharsetRule
+  //   CSSUnknownRule
+
+  // These objects are considered obsolete by CSSOM draft, although modern
+  // browsers implement them.
+  //   CSSValue
+  //   CSSPrimitiveValue
+  //   CSSValueList
+  //   RGBColor
+  //   Rect
+  //   Counter
+};

node_modules/jsdom/lib/jsdom/living/aborting/AbortController-impl.js

@@ -0,0 +1,17 @@
+"use strict";
+
+const AbortSignal = require("../generated/AbortSignal");
+
+class AbortControllerImpl {
+  constructor(globalObject) {
+    this.signal = AbortSignal.createImpl(globalObject, []);
+  }
+
+  abort(reason) {
+    this.signal._signalAbort(reason);
+  }
+}
+
+module.exports = {
+  implementation: AbortControllerImpl
+};

node_modules/jsdom/lib/jsdom/living/aborting/AbortSignal-impl.js

@@ -0,0 +1,69 @@
+"use strict";
+
+const { setupForSimpleEventAccessors } = require("../helpers/create-event-accessor");
+const { fireAnEvent } = require("../helpers/events");
+const EventTargetImpl = require("../events/EventTarget-impl").implementation;
+const AbortSignal = require("../generated/AbortSignal");
+const DOMException = require("domexception/webidl2js-wrapper");
+
+class AbortSignalImpl extends EventTargetImpl {
+  constructor(globalObject, args, privateData) {
+    super(globalObject, args, privateData);
+
+    // make event firing possible
+    this._ownerDocument = globalObject.document;
+
+    this.reason = undefined;
+    this.abortAlgorithms = new Set();
+  }
+
+  get aborted() {
+    return this.reason !== undefined;
+  }
+
+  static abort(globalObject, reason) {
+    const abortSignal = AbortSignal.createImpl(globalObject, []);
+    if (reason !== undefined) {
+      abortSignal.reason = reason;
+    } else {
+      abortSignal.reason = DOMException.create(globalObject, ["The operation was aborted.", "AbortError"]);
+    }
+    return abortSignal;
+  }
+
+  _signalAbort(reason) {
+    if (this.aborted) {
+      return;
+    }
+
+    if (reason !== undefined) {
+      this.reason = reason;
+    } else {
+      this.reason = DOMException.create(this._globalObject, ["The operation was aborted.", "AbortError"]);
+    }
+
+    for (const algorithm of this.abortAlgorithms) {
+      algorithm();
+    }
+    this.abortAlgorithms.clear();
+
+    fireAnEvent("abort", this);
+  }
+
+  _addAlgorithm(algorithm) {
+    if (this.aborted) {
+      return;
+    }
+    this.abortAlgorithms.add(algorithm);
+  }
+
+  _removeAlgorithm(algorithm) {
+    this.abortAlgorithms.delete(algorithm);
+  }
+}
+
+setupForSimpleEventAccessors(AbortSignalImpl.prototype, ["abort"]);
+
+module.exports = {
+  implementation: AbortSignalImpl
+};

node_modules/jsdom/lib/jsdom/living/attributes.js

@@ -0,0 +1,312 @@
+"use strict";
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const { HTML_NS } = require("./helpers/namespaces");
+const { asciiLowercase } = require("./helpers/strings");
+const { queueAttributeMutationRecord } = require("./helpers/mutation-observers");
+const { enqueueCECallbackReaction } = require("./helpers/custom-elements");
+
+// The following three are for https://dom.spec.whatwg.org/#concept-element-attribute-has. We don't just have a
+// predicate tester since removing that kind of flexibility gives us the potential for better future optimizations.
+
+/* eslint-disable no-restricted-properties */
+
+exports.hasAttribute = function (element, A) {
+  return element._attributeList.includes(A);
+};
+
+exports.hasAttributeByName = function (element, name) {
+  return element._attributesByNameMap.has(name);
+};
+
+exports.hasAttributeByNameNS = function (element, namespace, localName) {
+  return element._attributeList.some(attribute => {
+    return attribute._localName === localName && attribute._namespace === namespace;
+  });
+};
+
+// https://dom.spec.whatwg.org/#concept-element-attributes-change
+exports.changeAttribute = (element, attribute, value) => {
+  const { _localName, _namespace, _value } = attribute;
+
+  queueAttributeMutationRecord(element, _localName, _namespace, _value);
+
+  if (element._ceState === "custom") {
+    enqueueCECallbackReaction(element, "attributeChangedCallback", [
+      _localName,
+      _value,
+      value,
+      _namespace
+    ]);
+  }
+
+  attribute._value = value;
+
+  // Run jsdom hooks; roughly correspond to spec's "An attribute is set and an attribute is changed."
+  element._attrModified(attribute._qualifiedName, value, _value);
+};
+
+// https://dom.spec.whatwg.org/#concept-element-attributes-append
+exports.appendAttribute = function (element, attribute) {
+  const { _localName, _namespace, _value } = attribute;
+  queueAttributeMutationRecord(element, _localName, _namespace, null);
+
+  if (element._ceState === "custom") {
+    enqueueCECallbackReaction(element, "attributeChangedCallback", [
+      _localName,
+      null,
+      _value,
+      _namespace
+    ]);
+  }
+
+  const attributeList = element._attributeList;
+
+  attributeList.push(attribute);
+  attribute._element = element;
+
+  // Sync name cache
+  const name = attribute._qualifiedName;
+  const cache = element._attributesByNameMap;
+  let entry = cache.get(name);
+  if (!entry) {
+    entry = [];
+    cache.set(name, entry);
+  }
+  entry.push(attribute);
+
+  // Run jsdom hooks; roughly correspond to spec's "An attribute is set and an attribute is added."
+  element._attrModified(name, _value, null);
+};
+
+exports.removeAttribute = function (element, attribute) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-remove
+
+  const { _localName, _namespace, _value } = attribute;
+
+  queueAttributeMutationRecord(element, _localName, _namespace, _value);
+
+  if (element._ceState === "custom") {
+    enqueueCECallbackReaction(element, "attributeChangedCallback", [
+      _localName,
+      _value,
+      null,
+      _namespace
+    ]);
+  }
+
+  const attributeList = element._attributeList;
+
+  for (let i = 0; i < attributeList.length; ++i) {
+    if (attributeList[i] === attribute) {
+      attributeList.splice(i, 1);
+      attribute._element = null;
+
+      // Sync name cache
+      const name = attribute._qualifiedName;
+      const cache = element._attributesByNameMap;
+      const entry = cache.get(name);
+      entry.splice(entry.indexOf(attribute), 1);
+      if (entry.length === 0) {
+        cache.delete(name);
+      }
+
+      // Run jsdom hooks; roughly correspond to spec's "An attribute is removed."
+      element._attrModified(name, null, attribute._value);
+
+      return;
+    }
+  }
+};
+
+exports.replaceAttribute = function (element, oldAttr, newAttr) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-replace
+
+  const { _localName, _namespace, _value } = oldAttr;
+
+  queueAttributeMutationRecord(element, _localName, _namespace, _value);
+
+  if (element._ceState === "custom") {
+    enqueueCECallbackReaction(element, "attributeChangedCallback", [
+      _localName,
+      _value,
+      newAttr._value,
+      _namespace
+    ]);
+  }
+
+  const attributeList = element._attributeList;
+
+  for (let i = 0; i < attributeList.length; ++i) {
+    if (attributeList[i] === oldAttr) {
+      attributeList.splice(i, 1, newAttr);
+      oldAttr._element = null;
+      newAttr._element = element;
+
+      // Sync name cache
+      const name = newAttr._qualifiedName;
+      const cache = element._attributesByNameMap;
+      let entry = cache.get(name);
+      if (!entry) {
+        entry = [];
+        cache.set(name, entry);
+      }
+      entry.splice(entry.indexOf(oldAttr), 1, newAttr);
+
+      // Run jsdom hooks; roughly correspond to spec's "An attribute is set and an attribute is changed."
+      element._attrModified(name, newAttr._value, oldAttr._value);
+
+      return;
+    }
+  }
+};
+
+exports.getAttributeByName = function (element, name) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-get-by-name
+
+  if (element._namespaceURI === HTML_NS &&
+      element._ownerDocument._parsingMode === "html") {
+    name = asciiLowercase(name);
+  }
+
+  const cache = element._attributesByNameMap;
+  const entry = cache.get(name);
+  if (!entry) {
+    return null;
+  }
+
+  return entry[0];
+};
+
+exports.getAttributeByNameNS = function (element, namespace, localName) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-get-by-namespace
+
+  if (namespace === "") {
+    namespace = null;
+  }
+
+  const attributeList = element._attributeList;
+  for (let i = 0; i < attributeList.length; ++i) {
+    const attr = attributeList[i];
+    if (attr._namespace === namespace && attr._localName === localName) {
+      return attr;
+    }
+  }
+
+  return null;
+};
+
+// Both of the following functions implement https://dom.spec.whatwg.org/#concept-element-attributes-get-value.
+// Separated them into two to keep symmetry with other functions.
+exports.getAttributeValue = function (element, localName) {
+  const attr = exports.getAttributeByNameNS(element, null, localName);
+
+  if (!attr) {
+    return "";
+  }
+
+  return attr._value;
+};
+
+exports.getAttributeValueNS = function (element, namespace, localName) {
+  const attr = exports.getAttributeByNameNS(element, namespace, localName);
+
+  if (!attr) {
+    return "";
+  }
+
+  return attr._value;
+};
+
+exports.setAttribute = function (element, attr) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-set
+
+  if (attr._element !== null && attr._element !== element) {
+    throw DOMException.create(element._globalObject, ["The attribute is in use.", "InUseAttributeError"]);
+  }
+
+  const oldAttr = exports.getAttributeByNameNS(element, attr._namespace, attr._localName);
+  if (oldAttr === attr) {
+    return attr;
+  }
+
+  if (oldAttr !== null) {
+    exports.replaceAttribute(element, oldAttr, attr);
+  } else {
+    exports.appendAttribute(element, attr);
+  }
+
+  return oldAttr;
+};
+
+exports.setAttributeValue = function (element, localName, value, prefix, namespace) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-set-value
+
+  if (prefix === undefined) {
+    prefix = null;
+  }
+  if (namespace === undefined) {
+    namespace = null;
+  }
+
+  const attribute = exports.getAttributeByNameNS(element, namespace, localName);
+  if (attribute === null) {
+    const newAttribute = element._ownerDocument._createAttribute({
+      namespace,
+      namespacePrefix: prefix,
+      localName,
+      value
+    });
+    exports.appendAttribute(element, newAttribute);
+
+    return;
+  }
+
+  exports.changeAttribute(element, attribute, value);
+};
+
+// https://dom.spec.whatwg.org/#set-an-existing-attribute-value
+exports.setAnExistingAttributeValue = (attribute, value) => {
+  const element = attribute._element;
+  if (element === null) {
+    attribute._value = value;
+  } else {
+    exports.changeAttribute(element, attribute, value);
+  }
+};
+
+exports.removeAttributeByName = function (element, name) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-remove-by-name
+
+  const attr = exports.getAttributeByName(element, name);
+
+  if (attr !== null) {
+    exports.removeAttribute(element, attr);
+  }
+
+  return attr;
+};
+
+exports.removeAttributeByNameNS = function (element, namespace, localName) {
+  // https://dom.spec.whatwg.org/#concept-element-attributes-remove-by-namespace
+
+  const attr = exports.getAttributeByNameNS(element, namespace, localName);
+
+  if (attr !== null) {
+    exports.removeAttribute(element, attr);
+  }
+
+  return attr;
+};
+
+exports.attributeNames = function (element) {
+  // Needed by https://dom.spec.whatwg.org/#dom-element-getattributenames
+
+  return element._attributeList.map(a => a._qualifiedName);
+};
+
+exports.hasAttributes = function (element) {
+  // Needed by https://dom.spec.whatwg.org/#dom-element-hasattributes
+
+  return element._attributeList.length > 0;
+};

node_modules/jsdom/lib/jsdom/living/attributes/Attr-impl.js

@@ -0,0 +1,60 @@
+"use strict";
+
+const { setAnExistingAttributeValue } = require("../attributes.js");
+const NodeImpl = require("../nodes/Node-impl.js").implementation;
+const { ATTRIBUTE_NODE } = require("../node-type.js");
+
+exports.implementation = class AttrImpl extends NodeImpl {
+  constructor(globalObject, args, privateData) {
+    super(globalObject, args, privateData);
+
+    this._namespace = privateData.namespace !== undefined ? privateData.namespace : null;
+    this._namespacePrefix = privateData.namespacePrefix !== undefined ? privateData.namespacePrefix : null;
+    this._localName = privateData.localName;
+    this._value = privateData.value !== undefined ? privateData.value : "";
+    this._element = privateData.element !== undefined ? privateData.element : null;
+
+    this.nodeType = ATTRIBUTE_NODE;
+    this.specified = true;
+  }
+
+  get namespaceURI() {
+    return this._namespace;
+  }
+
+  get prefix() {
+    return this._namespacePrefix;
+  }
+
+  get localName() {
+    return this._localName;
+  }
+
+  get name() {
+    return this._qualifiedName;
+  }
+
+  get nodeName() {
+    return this._qualifiedName;
+  }
+
+  get value() {
+    return this._value;
+  }
+  set value(value) {
+    setAnExistingAttributeValue(this, value);
+  }
+
+  get ownerElement() {
+    return this._element;
+  }
+
+  get _qualifiedName() {
+    // https://dom.spec.whatwg.org/#concept-attribute-qualified-name
+    if (this._namespacePrefix === null) {
+      return this._localName;
+    }
+
+    return this._namespacePrefix + ":" + this._localName;
+  }
+};

node_modules/jsdom/lib/jsdom/living/attributes/NamedNodeMap-impl.js

@@ -0,0 +1,78 @@
+"use strict";
+
+const DOMException = require("domexception/webidl2js-wrapper");
+const idlUtils = require("../generated/utils.js");
+const attributes = require("../attributes.js");
+const { HTML_NS } = require("../helpers/namespaces");
+
+exports.implementation = class NamedNodeMapImpl {
+  constructor(globalObject, args, privateData) {
+    this._element = privateData.element;
+
+    this._globalObject = globalObject;
+  }
+  get _attributeList() {
+    return this._element._attributeList;
+  }
+
+  get [idlUtils.supportedPropertyIndices]() {
+    return this._attributeList.keys();
+  }
+  get length() {
+    return this._attributeList.length;
+  }
+  item(index) {
+    if (index >= this._attributeList.length) {
+      return null;
+    }
+    return this._attributeList[index];
+  }
+
+  get [idlUtils.supportedPropertyNames]() {
+    const names = new Set(this._attributeList.map(a => a._qualifiedName));
+    const el = this._element;
+    if (el._namespaceURI === HTML_NS && el._ownerDocument._parsingMode === "html") {
+      for (const name of names) {
+        const lowercaseName = name.toLowerCase();
+        if (lowercaseName !== name) {
+          names.delete(name);
+        }
+      }
+    }
+    return names;
+  }
+  getNamedItem(qualifiedName) {
+    return attributes.getAttributeByName(this._element, qualifiedName);
+  }
+  getNamedItemNS(namespace, localName) {
+    return attributes.getAttributeByNameNS(this._element, namespace, localName);
+  }
+  setNamedItem(attr) {
+    // eslint-disable-next-line no-restricted-properties
+    return attributes.setAttribute(this._element, attr);
+  }
+  setNamedItemNS(attr) {
+    // eslint-disable-next-line no-restricted-properties
+    return attributes.setAttribute(this._element, attr);
+  }
+  removeNamedItem(qualifiedName) {
+    const attr = attributes.removeAttributeByName(this._element, qualifiedName);
+    if (attr === null) {
+      throw DOMException.create(this._globalObject, [
+        "Tried to remove an attribute that was not present",
+        "NotFoundError"
+      ]);
+    }
+    return attr;
+  }
+  removeNamedItemNS(namespace, localName) {
+    const attr = attributes.removeAttributeByNameNS(this._element, namespace, localName);
+    if (attr === null) {
+      throw DOMException.create(this._globalObject, [
+        "Tried to remove an attribute that was not present",
+        "NotFoundError"
+      ]);
+    }
+    return attr;
+  }
+};

node_modules/jsdom/lib/jsdom/living/constraint-validation/DefaultConstraintValidation-impl.js

@@ -0,0 +1,75 @@
+"use strict";
+
+const ValidityState = require("../generated/ValidityState");
+const { isDisabled } = require("../helpers/form-controls");
+const { closest } = require("../helpers/traversal");
+const { fireAnEvent } = require("../helpers/events");
+
+exports.implementation = class DefaultConstraintValidationImpl {
+  // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-willvalidate
+  get willValidate() {
+    return this._isCandidateForConstraintValidation();
+  }
+
+  get validity() {
+    if (!this._validity) {
+      this._validity = ValidityState.createImpl(this._globalObject, [], {
+        element: this
+      });
+    }
+    return this._validity;
+  }
+
+  // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity
+  checkValidity() {
+    if (!this._isCandidateForConstraintValidation()) {
+      return true;
+    }
+    if (this._satisfiesConstraints()) {
+      return true;
+    }
+    fireAnEvent("invalid", this, undefined, { cancelable: true });
+    return false;
+  }
+
+  // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-setcustomvalidity
+  setCustomValidity(message) {
+    this._customValidityErrorMessage = message;
+  }
+
+  // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity
+  // Since jsdom has no user interaction, it's the same as #checkValidity
+  reportValidity() {
+    return this.checkValidity();
+  }
+
+  // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-validationmessage
+  get validationMessage() {
+    const { validity } = this;
+    if (!this._isCandidateForConstraintValidation() || this._satisfiesConstraints()) {
+      return "";
+    }
+    const isSufferingFromCustomError = validity.customError;
+    if (isSufferingFromCustomError) {
+      return this._customValidityErrorMessage;
+    }
+    return "Constraints not satisfied";
+  }
+
+  _isCandidateForConstraintValidation() {
+    // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fe-disabled
+    return !isDisabled(this) &&
+      // If an element has a datalist element ancestor,
+      // it is barred from constraint validation.
+      closest(this, "datalist") === null &&
+      !this._barredFromConstraintValidationSpecialization();
+  }
+
+  _isBarredFromConstraintValidation() {
+    return !this._isCandidateForConstraintValidation();
+  }
+
+  _satisfiesConstraints() {
+    return this.validity.valid;
+  }
+};

node_modules/jsdom/lib/jsdom/living/constraint-validation/ValidityState-impl.js

@@ -0,0 +1,66 @@
+"use strict";
+
+exports.implementation = class ValidityStateImpl {
+  constructor(globalObject, args, privateData) {
+    const { element, state = {} } = privateData;
+
+    this._element = element;
+    this._state = state;
+  }
+
+  get badInput() {
+    return this._failsConstraint("badInput");
+  }
+
+  // https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#suffering-from-a-custom-error
+  get customError() {
+    return this._element._customValidityErrorMessage !== "";
+  }
+
+  get patternMismatch() {
+    return this._failsConstraint("patternMismatch");
+  }
+
+  get rangeOverflow() {
+    return this._failsConstraint("rangeOverflow");
+  }
+
+  get rangeUnderflow() {
+    return this._failsConstraint("rangeUnderflow");
+  }
+
+  get stepMismatch() {
+    return this._failsConstraint("stepMismatch");
+  }
+
+  get tooLong() {
+    return this._failsConstraint("tooLong");
+  }
+
+  get tooShort() {
+    return this._failsConstraint("tooShort");
+  }
+
+  get typeMismatch() {
+    return this._failsConstraint("typeMismatch");
+  }
+
+  get valueMissing() {
+    return this._failsConstraint("valueMissing");
+  }
+
+  _failsConstraint(method) {
+    const validationMethod = this._state[method];
+    if (validationMethod) {
+      return validationMethod();
+    }
+
+    return false;
+  }
+
+  get valid() {
+    return !(this.badInput || this.valueMissing || this.customError ||
+            this.patternMismatch || this.rangeOverflow || this.rangeUnderflow ||
+            this.stepMismatch || this.tooLong || this.tooShort || this.typeMismatch);
+  }
+};

node_modules/jsdom/lib/jsdom/living/crypto/Crypto-impl.js

@@ -0,0 +1,47 @@
+"use strict";
+
+const nodeCrypto = require("crypto");
+const DOMException = require("domexception/webidl2js-wrapper");
+
+// https://w3c.github.io/webcrypto/#crypto-interface
+class CryptoImpl {
+  constructor(globalObject) {
+    this._globalObject = globalObject;
+  }
+
+  // https://w3c.github.io/webcrypto/#Crypto-method-getRandomValues
+  getRandomValues(array) {
+    // Note: this rejects Float32Array, Float64Array and DataView.
+    //
+    // We perform "instance tests" by comparing `array.constructor.name` so
+    // that the tests will be successful across realms.
+    const typeName = array.constructor.name;
+    if (!(typeName === "Int8Array" ||
+        typeName === "Uint8Array" ||
+        typeName === "Uint8ClampedArray" ||
+        typeName === "Int16Array" ||
+        typeName === "Uint16Array" ||
+        typeName === "Int32Array" ||
+        typeName === "Uint32Array" ||
+        typeName === "BigInt64Array" ||
+        typeName === "BigUint64Array")) {
+      throw DOMException.create(this._globalObject, [
+        `getRandomValues() only accepts integer typed arrays`,
+        "TypeMismatchError"
+      ]);
+    }
+
+    if (array.byteLength > 65536) {
+      throw DOMException.create(this._globalObject, [
+        `getRandomValues() cannot generate more than 65536 bytes of random values; ` +
+        `${array.byteLength} bytes were requested`,
+        "QuotaExceededError"
+      ]);
+    }
+
+    nodeCrypto.randomFillSync(array);
+    return array;
+  }
+}
+
+exports.implementation = CryptoImpl;

node_modules/jsdom/lib/jsdom/living/cssom/StyleSheetList-impl.js

@@ -0,0 +1,38 @@
+"use strict";
+
+const idlUtils = require("../generated/utils.js");
+
+exports.implementation = class StyleSheetList {
+  constructor() {
+    this._list = [];
+  }
+
+  get length() {
+    return this._list.length;
+  }
+
+  item(index) {
+    const result = this._list[index];
+    return result !== undefined ? result : null;
+  }
+
+  get [idlUtils.supportedPropertyIndices]() {
+    return this._list.keys();
+  }
+
+  _add(sheet) {
+    const { _list } = this;
+    if (!_list.includes(sheet)) {
+      _list.push(sheet);
+    }
+  }
+
+  _remove(sheet) {
+    const { _list } = this;
+
+    const index = _list.indexOf(sheet);
+    if (index >= 0) {
+      _list.splice(index, 1);
+    }
+  }
+};

node_modules/jsdom/lib/jsdom/living/custom-elements/CustomElementRegistry-impl.js

@@ -0,0 +1,265 @@
+"use strict";
+
+const webIDLConversions = require("webidl-conversions");
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const NODE_TYPE = require("../node-type");
+
+const { HTML_NS } = require("../helpers/namespaces");
+const { getHTMLElementInterface } = require("../helpers/create-element");
+const { shadowIncludingInclusiveDescendantsIterator } = require("../helpers/shadow-dom");
+const { isValidCustomElementName, tryUpgradeElement, enqueueCEUpgradeReaction } = require("../helpers/custom-elements");
+
+const idlUtils = require("../generated/utils");
+const IDLFunction = require("../generated/Function.js");
+const HTMLUnknownElement = require("../generated/HTMLUnknownElement");
+
+const LIFECYCLE_CALLBACKS = [
+  "connectedCallback",
+  "disconnectedCallback",
+  "adoptedCallback",
+  "attributeChangedCallback"
+];
+
+function convertToSequenceDOMString(obj) {
+  if (!obj || !obj[Symbol.iterator]) {
+    throw new TypeError("Invalid Sequence");
+  }
+
+  return Array.from(obj).map(webIDLConversions.DOMString);
+}
+
+// Returns true is the passed value is a valid constructor.
+// Borrowed from: https://stackoverflow.com/a/39336206/3832710
+function isConstructor(value) {
+  if (typeof value !== "function") {
+    return false;
+  }
+
+  try {
+    const P = new Proxy(value, {
+      construct() {
+        return {};
+      }
+    });
+
+    // eslint-disable-next-line no-new
+    new P();
+
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+// https://html.spec.whatwg.org/#customelementregistry
+class CustomElementRegistryImpl {
+  constructor(globalObject) {
+    this._customElementDefinitions = [];
+    this._elementDefinitionIsRunning = false;
+    this._whenDefinedPromiseMap = Object.create(null);
+
+    this._globalObject = globalObject;
+  }
+
+  // https://html.spec.whatwg.org/#dom-customelementregistry-define
+  define(name, constructor, options) {
+    const { _globalObject } = this;
+    const ctor = constructor.objectReference;
+
+    if (!isConstructor(ctor)) {
+      throw new TypeError("Constructor argument is not a constructor.");
+    }
+
+    if (!isValidCustomElementName(name)) {
+      throw DOMException.create(_globalObject, ["Name argument is not a valid custom element name.", "SyntaxError"]);
+    }
+
+    const nameAlreadyRegistered = this._customElementDefinitions.some(entry => entry.name === name);
+    if (nameAlreadyRegistered) {
+      throw DOMException.create(_globalObject, [
+        "This name has already been registered in the registry.",
+        "NotSupportedError"
+      ]);
+    }
+
+    const ctorAlreadyRegistered = this._customElementDefinitions.some(entry => entry.objectReference === ctor);
+    if (ctorAlreadyRegistered) {
+      throw DOMException.create(_globalObject, [
+        "This constructor has already been registered in the registry.",
+        "NotSupportedError"
+      ]);
+    }
+
+    let localName = name;
+
+    let extendsOption = null;
+    if (options !== undefined && options.extends) {
+      extendsOption = options.extends;
+    }
+
+    if (extendsOption !== null) {
+      if (isValidCustomElementName(extendsOption)) {
+        throw DOMException.create(_globalObject, [
+          "Option extends value can't be a valid custom element name.",
+          "NotSupportedError"
+        ]);
+      }
+
+      const extendsInterface = getHTMLElementInterface(extendsOption);
+      if (extendsInterface === HTMLUnknownElement) {
+        throw DOMException.create(_globalObject, [
+          `${extendsOption} is an HTMLUnknownElement.`,
+          "NotSupportedError"
+        ]);
+      }
+
+      localName = extendsOption;
+    }
+
+    if (this._elementDefinitionIsRunning) {
+      throw DOMException.create(_globalObject, [
+        "Invalid nested custom element definition.",
+        "NotSupportedError"
+      ]);
+    }
+
+    this._elementDefinitionIsRunning = true;
+
+    let disableShadow = false;
+    let observedAttributes = [];
+    const lifecycleCallbacks = {
+      connectedCallback: null,
+      disconnectedCallback: null,
+      adoptedCallback: null,
+      attributeChangedCallback: null
+    };
+
+    let caughtError;
+    try {
+      const { prototype } = ctor;
+
+      if (typeof prototype !== "object") {
+        throw new TypeError("Invalid constructor prototype.");
+      }
+
+      for (const callbackName of LIFECYCLE_CALLBACKS) {
+        const callbackValue = prototype[callbackName];
+
+        if (callbackValue !== undefined) {
+          lifecycleCallbacks[callbackName] = IDLFunction.convert(_globalObject, callbackValue, {
+            context: `The lifecycle callback "${callbackName}"`
+          });
+        }
+      }
+
+      if (lifecycleCallbacks.attributeChangedCallback !== null) {
+        const observedAttributesIterable = ctor.observedAttributes;
+
+        if (observedAttributesIterable !== undefined) {
+          observedAttributes = convertToSequenceDOMString(observedAttributesIterable);
+        }
+      }
+
+      let disabledFeatures = [];
+      const disabledFeaturesIterable = ctor.disabledFeatures;
+      if (disabledFeaturesIterable) {
+        disabledFeatures = convertToSequenceDOMString(disabledFeaturesIterable);
+      }
+
+      disableShadow = disabledFeatures.includes("shadow");
+    } catch (err) {
+      caughtError = err;
+    } finally {
+      this._elementDefinitionIsRunning = false;
+    }
+
+    if (caughtError !== undefined) {
+      throw caughtError;
+    }
+
+    const definition = {
+      name,
+      localName,
+      constructor,
+      objectReference: ctor,
+      observedAttributes,
+      lifecycleCallbacks,
+      disableShadow,
+      constructionStack: []
+    };
+
+    this._customElementDefinitions.push(definition);
+
+    const document = idlUtils.implForWrapper(this._globalObject._document);
+
+    const upgradeCandidates = [];
+    for (const candidate of shadowIncludingInclusiveDescendantsIterator(document)) {
+      if (
+        (candidate._namespaceURI === HTML_NS && candidate._localName === localName) &&
+        (extendsOption === null || candidate._isValue === name)
+      ) {
+        upgradeCandidates.push(candidate);
+      }
+    }
+
+    for (const upgradeCandidate of upgradeCandidates) {
+      enqueueCEUpgradeReaction(upgradeCandidate, definition);
+    }
+
+    if (this._whenDefinedPromiseMap[name] !== undefined) {
+      this._whenDefinedPromiseMap[name].resolve(ctor);
+      delete this._whenDefinedPromiseMap[name];
+    }
+  }
+
+  // https://html.spec.whatwg.org/#dom-customelementregistry-get
+  get(name) {
+    const definition = this._customElementDefinitions.find(entry => entry.name === name);
+    return definition && definition.objectReference;
+  }
+
+  // https://html.spec.whatwg.org/#dom-customelementregistry-whendefined
+  whenDefined(name) {
+    if (!isValidCustomElementName(name)) {
+      return Promise.reject(DOMException.create(
+        this._globalObject,
+        ["Name argument is not a valid custom element name.", "SyntaxError"]
+      ));
+    }
+
+    const alreadyRegistered = this._customElementDefinitions.find(entry => entry.name === name);
+    if (alreadyRegistered) {
+      return Promise.resolve(alreadyRegistered.objectReference);
+    }
+
+    if (this._whenDefinedPromiseMap[name] === undefined) {
+      let resolve;
+      const promise = new Promise(r => {
+        resolve = r;
+      });
+
+      // Store the pending Promise along with the extracted resolve callback to actually resolve the returned Promise,
+      // once the custom element is registered.
+      this._whenDefinedPromiseMap[name] = {
+        promise,
+        resolve
+      };
+    }
+
+    return this._whenDefinedPromiseMap[name].promise;
+  }
+
+  // https://html.spec.whatwg.org/#dom-customelementregistry-upgrade
+  upgrade(root) {
+    for (const candidate of shadowIncludingInclusiveDescendantsIterator(root)) {
+      if (candidate.nodeType === NODE_TYPE.ELEMENT_NODE) {
+        tryUpgradeElement(candidate);
+      }
+    }
+  }
+}
+
+module.exports = {
+  implementation: CustomElementRegistryImpl
+};

node_modules/jsdom/lib/jsdom/living/documents.js

@@ -0,0 +1,15 @@
+"use strict";
+const XMLDocument = require("../living/generated/XMLDocument.js");
+const Document = require("../living/generated/Document.js");
+const { wrapperForImpl } = require("./generated/utils.js");
+
+exports.createImpl = (globalObject, options, { alwaysUseDocumentClass = false } = {}) => {
+  if (options.parsingMode === "xml" && !alwaysUseDocumentClass) {
+    return XMLDocument.createImpl(globalObject, [], { options });
+  }
+  return Document.createImpl(globalObject, [], { options });
+};
+
+exports.createWrapper = (...args) => {
+  return wrapperForImpl(exports.createImpl(...args));
+};

node_modules/jsdom/lib/jsdom/living/domparsing/DOMParser-impl.js

@@ -0,0 +1,58 @@
+"use strict";
+
+const { parseIntoDocument } = require("../../browser/parser");
+
+const Document = require("../generated/Document");
+
+exports.implementation = class DOMParserImpl {
+  constructor(globalObject) {
+    this._globalObject = globalObject;
+  }
+
+  parseFromString(string, contentType) {
+    switch (String(contentType)) {
+      case "text/html": {
+        return this.createScriptingDisabledDocument("html", contentType, string);
+      }
+
+      case "text/xml":
+      case "application/xml":
+      case "application/xhtml+xml":
+      case "image/svg+xml": {
+        try {
+          return this.createScriptingDisabledDocument("xml", contentType, string);
+        } catch (error) {
+          const document = this.createScriptingDisabledDocument("xml", contentType);
+          const element = document.createElementNS("http://www.mozilla.org/newlayout/xml/parsererror.xml", "parsererror");
+
+          element.textContent = error.message;
+
+          document.appendChild(element);
+          return document;
+        }
+      }
+
+      default:
+        throw new TypeError("Invalid contentType");
+    }
+  }
+
+  createScriptingDisabledDocument(parsingMode, contentType, string) {
+    const document = Document.createImpl(this._globalObject, [], {
+      options: {
+        parsingMode,
+        encoding: "UTF-8",
+        contentType,
+        readyState: "complete",
+        scriptingDisabled: true
+        // TODO: somehow set URL to active document's URL
+      }
+    });
+
+    if (string !== undefined) {
+      parseIntoDocument(string, document);
+    }
+
+    return document;
+  }
+};

node_modules/jsdom/lib/jsdom/living/domparsing/InnerHTML-impl.js

@@ -0,0 +1,30 @@
+"use strict";
+
+const { parseFragment } = require("../../browser/parser");
+const { HTML_NS } = require("../helpers/namespaces.js");
+const { isShadowRoot } = require("../helpers/shadow-dom.js");
+const NODE_TYPE = require("../node-type.js");
+const { fragmentSerialization } = require("./serialization.js");
+
+// https://w3c.github.io/DOM-Parsing/#the-innerhtml-mixin
+exports.implementation = class InnerHTMLImpl {
+  // https://w3c.github.io/DOM-Parsing/#dom-innerhtml-innerhtml
+  get innerHTML() {
+    return fragmentSerialization(this, {
+      outer: false,
+      requireWellFormed: true,
+      globalObject: this._globalObject
+    });
+  }
+  set innerHTML(markup) {
+    const contextElement = isShadowRoot(this) ? this.host : this;
+    const fragment = parseFragment(markup, contextElement);
+
+    let contextObject = this;
+    if (this.nodeType === NODE_TYPE.ELEMENT_NODE && this.localName === "template" && this.namespaceURI === HTML_NS) {
+      contextObject = this._templateContents;
+    }
+
+    contextObject._replaceAll(fragment);
+  }
+};

node_modules/jsdom/lib/jsdom/living/domparsing/XMLSerializer-impl.js

@@ -0,0 +1,18 @@
+"use strict";
+const serialize = require("w3c-xmlserializer");
+const DOMException = require("domexception/webidl2js-wrapper");
+const utils = require("../generated/utils");
+
+exports.implementation = class XMLSerializerImpl {
+  constructor(globalObject) {
+    this._globalObject = globalObject;
+  }
+
+  serializeToString(root) {
+    try {
+      return serialize(utils.wrapperForImpl(root), { requireWellFormed: false });
+    } catch (e) {
+      throw DOMException.create(this._globalObject, [e.message, "InvalidStateError"]);
+    }
+  }
+};

node_modules/jsdom/lib/jsdom/living/domparsing/parse5-adapter-serialization.js

@@ -0,0 +1,63 @@
+"use strict";
+const nodeTypes = require("../node-type");
+const { domSymbolTree } = require("../helpers/internal-constants");
+// Serialization only requires a subset of the tree adapter interface.
+
+// Tree traversing
+exports.getFirstChild = node => node.firstChild;
+
+exports.getChildNodes = node => domSymbolTree.childrenToArray(node);
+
+exports.getParentNode = node => node.parentNode;
+
+exports.getAttrList = element => {
+  const attributeList = [...element._attributeList];
+
+  if (element._isValue && attributeList.every(attr => attr.name !== "is")) {
+    attributeList.unshift({
+      name: "is",
+      namespace: null,
+      prefix: null,
+      value: element._isValue
+    });
+  }
+
+  return attributeList;
+};
+
+// Node data
+exports.getTagName = element => element._qualifiedName; // https://github.com/inikulin/parse5/issues/231
+
+exports.getNamespaceURI = element => element.namespaceURI;
+
+exports.getTextNodeContent = exports.getCommentNodeContent = node => node.data;
+
+exports.getDocumentTypeNodeName = node => node.name;
+
+exports.getDocumentTypeNodePublicId = node => node.publicId;
+
+exports.getDocumentTypeNodeSystemId = node => node.systemId;
+
+exports.getTemplateContent = templateElement => templateElement._templateContents;
+
+exports.getDocumentMode = document => document._mode;
+
+// Node types
+exports.isTextNode = node => node.nodeType === nodeTypes.TEXT_NODE;
+
+exports.isCommentNode = node => node.nodeType === nodeTypes.COMMENT_NODE;
+
+exports.isDocumentTypeNode = node => node.nodeType === nodeTypes.DOCUMENT_TYPE_NODE;
+
+exports.isElementNode = node => node.nodeType === nodeTypes.ELEMENT_NODE;
+
+// Source code location
+exports.setNodeSourceCodeLocation = (node, location) => {
+  node.sourceCodeLocation = location;
+};
+
+exports.getNodeSourceCodeLocation = node => node.sourceCodeLocation;
+
+exports.updateNodeSourceCodeLocation = (node, endLocation) => {
+  Object.assign(node.sourceCodeLocation, endLocation);
+};

node_modules/jsdom/lib/jsdom/living/domparsing/serialization.js

@@ -0,0 +1,36 @@
+"use strict";
+
+const produceXMLSerialization = require("w3c-xmlserializer");
+const parse5 = require("parse5");
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const utils = require("../generated/utils");
+const treeAdapter = require("./parse5-adapter-serialization");
+const NODE_TYPE = require("../node-type");
+
+module.exports.fragmentSerialization = (node, { outer, requireWellFormed, globalObject }) => {
+  const contextDocument =
+    node.nodeType === NODE_TYPE.DOCUMENT_NODE ? node : node._ownerDocument;
+  if (contextDocument._parsingMode === "html") {
+    const config = {
+      ...contextDocument._parseOptions,
+      treeAdapter
+    };
+    return outer ? parse5.serializeOuter(node, config) : parse5.serialize(node, config);
+  }
+
+  const childNodes = outer ? [node] : node.childNodes;
+
+  try {
+    let serialized = "";
+    for (let i = 0; i < childNodes.length; ++i) {
+      serialized += produceXMLSerialization(
+        utils.wrapperForImpl(childNodes[i] || childNodes.item(i)),
+        { requireWellFormed }
+      );
+    }
+    return serialized;
+  } catch (e) {
+    throw DOMException.create(globalObject, [e.message, "InvalidStateError"]);
+  }
+};

node_modules/jsdom/lib/jsdom/living/events/CloseEvent-impl.js

@@ -0,0 +1,10 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const CloseEventInit = require("../generated/CloseEventInit");
+
+class CloseEventImpl extends EventImpl {}
+CloseEventImpl.defaultInit = CloseEventInit.convert(undefined, undefined);
+
+exports.implementation = CloseEventImpl;

node_modules/jsdom/lib/jsdom/living/events/CompositionEvent-impl.js

@@ -0,0 +1,20 @@
+"use strict";
+
+const UIEventImpl = require("./UIEvent-impl").implementation;
+const CompositionEventInit = require("../generated/CompositionEventInit");
+
+class CompositionEventImpl extends UIEventImpl {
+  initCompositionEvent(type, bubbles, cancelable, view, data) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initUIEvent(type, bubbles, cancelable, view, 0);
+    this.data = data;
+  }
+}
+CompositionEventImpl.defaultInit = CompositionEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: CompositionEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/CustomEvent-impl.js

@@ -0,0 +1,21 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const CustomEventInit = require("../generated/CustomEventInit");
+
+class CustomEventImpl extends EventImpl {
+  initCustomEvent(type, bubbles, cancelable, detail) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initEvent(type, bubbles, cancelable);
+    this.detail = detail;
+  }
+}
+CustomEventImpl.defaultInit = CustomEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: CustomEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/ErrorEvent-impl.js

@@ -0,0 +1,14 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const ErrorEventInit = require("../generated/ErrorEventInit");
+
+class ErrorEventImpl extends EventImpl {
+
+}
+ErrorEventImpl.defaultInit = ErrorEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: ErrorEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/Event-impl.js

@@ -0,0 +1,197 @@
+"use strict";
+
+const idlUtils = require("../generated/utils");
+const EventInit = require("../generated/EventInit");
+
+class EventImpl {
+  constructor(globalObject, args, privateData) {
+    const [type, eventInitDict = this.constructor.defaultInit] = args;
+
+    this.type = type;
+
+    this.bubbles = false;
+    this.cancelable = false;
+    for (const key in eventInitDict) {
+      if (key in this.constructor.defaultInit) {
+        this[key] = eventInitDict[key];
+      }
+    }
+    for (const key in this.constructor.defaultInit) {
+      if (!(key in this)) {
+        this[key] = this.constructor.defaultInit[key];
+      }
+    }
+
+    this.target = null;
+    this.currentTarget = null;
+    this.eventPhase = 0;
+
+    this._globalObject = globalObject;
+    this._initializedFlag = true;
+    this._stopPropagationFlag = false;
+    this._stopImmediatePropagationFlag = false;
+    this._canceledFlag = false;
+    this._inPassiveListenerFlag = false;
+    this._dispatchFlag = false;
+    this._path = [];
+
+    this.isTrusted = privateData.isTrusted || false;
+    this.timeStamp = Date.now();
+  }
+
+  // https://dom.spec.whatwg.org/#set-the-canceled-flag
+  _setTheCanceledFlag() {
+    if (this.cancelable && !this._inPassiveListenerFlag) {
+      this._canceledFlag = true;
+    }
+  }
+
+  get srcElement() {
+    return this.target;
+  }
+
+  get returnValue() {
+    return !this._canceledFlag;
+  }
+
+  set returnValue(v) {
+    if (v === false) {
+      this._setTheCanceledFlag();
+    }
+  }
+
+  get defaultPrevented() {
+    return this._canceledFlag;
+  }
+
+  stopPropagation() {
+    this._stopPropagationFlag = true;
+  }
+
+  get cancelBubble() {
+    return this._stopPropagationFlag;
+  }
+
+  set cancelBubble(v) {
+    if (v) {
+      this._stopPropagationFlag = true;
+    }
+  }
+
+  stopImmediatePropagation() {
+    this._stopPropagationFlag = true;
+    this._stopImmediatePropagationFlag = true;
+  }
+
+  preventDefault() {
+    this._setTheCanceledFlag();
+  }
+
+  // https://dom.spec.whatwg.org/#dom-event-composedpath
+  // Current implementation is based of https://whatpr.org/dom/699.html#dom-event-composedpath
+  // due to a bug in composed path implementation https://github.com/whatwg/dom/issues/684
+  composedPath() {
+    const composedPath = [];
+
+    const { currentTarget, _path: path } = this;
+
+    if (path.length === 0) {
+      return composedPath;
+    }
+
+    composedPath.push(currentTarget);
+
+    let currentTargetIndex = 0;
+    let currentTargetHiddenSubtreeLevel = 0;
+
+    for (let index = path.length - 1; index >= 0; index--) {
+      const { item, rootOfClosedTree, slotInClosedTree } = path[index];
+
+      if (rootOfClosedTree) {
+        currentTargetHiddenSubtreeLevel++;
+      }
+
+      if (item === idlUtils.implForWrapper(currentTarget)) {
+        currentTargetIndex = index;
+        break;
+      }
+
+      if (slotInClosedTree) {
+        currentTargetHiddenSubtreeLevel--;
+      }
+    }
+
+    let currentHiddenLevel = currentTargetHiddenSubtreeLevel;
+    let maxHiddenLevel = currentTargetHiddenSubtreeLevel;
+
+    for (let i = currentTargetIndex - 1; i >= 0; i--) {
+      const { item, rootOfClosedTree, slotInClosedTree } = path[i];
+
+      if (rootOfClosedTree) {
+        currentHiddenLevel++;
+      }
+
+      if (currentHiddenLevel <= maxHiddenLevel) {
+        composedPath.unshift(idlUtils.wrapperForImpl(item));
+      }
+
+      if (slotInClosedTree) {
+        currentHiddenLevel--;
+        if (currentHiddenLevel < maxHiddenLevel) {
+          maxHiddenLevel = currentHiddenLevel;
+        }
+      }
+    }
+
+    currentHiddenLevel = currentTargetHiddenSubtreeLevel;
+    maxHiddenLevel = currentTargetHiddenSubtreeLevel;
+
+    for (let index = currentTargetIndex + 1; index < path.length; index++) {
+      const { item, rootOfClosedTree, slotInClosedTree } = path[index];
+
+      if (slotInClosedTree) {
+        currentHiddenLevel++;
+      }
+
+      if (currentHiddenLevel <= maxHiddenLevel) {
+        composedPath.push(idlUtils.wrapperForImpl(item));
+      }
+
+      if (rootOfClosedTree) {
+        currentHiddenLevel--;
+        if (currentHiddenLevel < maxHiddenLevel) {
+          maxHiddenLevel = currentHiddenLevel;
+        }
+      }
+    }
+
+    return composedPath;
+  }
+
+  _initialize(type, bubbles, cancelable) {
+    this.type = type;
+    this._initializedFlag = true;
+
+    this._stopPropagationFlag = false;
+    this._stopImmediatePropagationFlag = false;
+    this._canceledFlag = false;
+
+    this.isTrusted = false;
+    this.target = null;
+    this.bubbles = bubbles;
+    this.cancelable = cancelable;
+  }
+
+  initEvent(type, bubbles, cancelable) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this._initialize(type, bubbles, cancelable);
+  }
+}
+EventImpl.defaultInit = EventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: EventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/EventModifierMixin-impl.js

@@ -0,0 +1,18 @@
+"use strict";
+
+// This mixin doesn't have an IDL equivalent, but since MouseEvent and KeyboardEvent implement getModifierState() the
+// same way, its implementation is shared here.
+
+class EventModifierMixinImpl {
+  // Event's constructor assumes all options correspond to IDL attributes with the same names, and sets them on `this`.
+  // That is not the case for these modifier boolean options, but since the options are set on `this` anyway we'll
+  // access them that way. The spec doesn't say much about the case where keyArg is not one of the valid ones
+  // (https://w3c.github.io/uievents-key/#keys-modifier), but at least Chrome returns false for invalid modifiers. Since
+  // these invalid modifiers will be undefined on `this` (thus `false` after casting it to boolean), we don't need to do
+  // extra checking for validity.
+  getModifierState(keyArg) {
+    return Boolean(this[`modifier${keyArg}`]);
+  }
+}
+
+exports.implementation = EventModifierMixinImpl;

node_modules/jsdom/lib/jsdom/living/events/EventTarget-impl.js

@@ -0,0 +1,419 @@
+"use strict";
+const DOMException = require("domexception/webidl2js-wrapper");
+
+const reportException = require("../helpers/runtime-script-errors");
+const idlUtils = require("../generated/utils");
+const { nodeRoot } = require("../helpers/node");
+const {
+  isNode, isShadowRoot, isSlotable, getEventTargetParent,
+  isShadowInclusiveAncestor, retarget
+} = require("../helpers/shadow-dom");
+
+const MouseEvent = require("../generated/MouseEvent");
+
+const EVENT_PHASE = {
+  NONE: 0,
+  CAPTURING_PHASE: 1,
+  AT_TARGET: 2,
+  BUBBLING_PHASE: 3
+};
+
+class EventTargetImpl {
+  constructor(globalObject) {
+    this._globalObject = globalObject;
+    this._eventListeners = Object.create(null);
+  }
+
+  addEventListener(type, callback, options) {
+    options = normalizeEventHandlerOptions(options, ["capture", "once", "passive"]);
+
+    if (options.signal !== null && options.signal.aborted) {
+      return;
+    }
+
+    if (callback === null) {
+      return;
+    }
+
+    if (!this._eventListeners[type]) {
+      this._eventListeners[type] = [];
+    }
+
+    for (let i = 0; i < this._eventListeners[type].length; ++i) {
+      const listener = this._eventListeners[type][i];
+      if (
+        listener.callback.objectReference === callback.objectReference &&
+        listener.options.capture === options.capture
+      ) {
+        return;
+      }
+    }
+
+    this._eventListeners[type].push({
+      callback,
+      options
+    });
+
+    if (options.signal !== null) {
+      options.signal._addAlgorithm(() => {
+        this.removeEventListener(type, callback, options);
+      });
+    }
+  }
+
+  removeEventListener(type, callback, options) {
+    options = normalizeEventHandlerOptions(options, ["capture"]);
+
+    if (callback === null) {
+      // Optimization, not in the spec.
+      return;
+    }
+
+    if (!this._eventListeners[type]) {
+      return;
+    }
+
+    for (let i = 0; i < this._eventListeners[type].length; ++i) {
+      const listener = this._eventListeners[type][i];
+      if (
+        listener.callback.objectReference === callback.objectReference &&
+        listener.options.capture === options.capture
+      ) {
+        this._eventListeners[type].splice(i, 1);
+        break;
+      }
+    }
+  }
+
+  dispatchEvent(eventImpl) {
+    if (eventImpl._dispatchFlag || !eventImpl._initializedFlag) {
+      throw DOMException.create(this._globalObject, [
+        "Tried to dispatch an uninitialized event",
+        "InvalidStateError"
+      ]);
+    }
+    if (eventImpl.eventPhase !== EVENT_PHASE.NONE) {
+      throw DOMException.create(this._globalObject, [
+        "Tried to dispatch a dispatching event",
+        "InvalidStateError"
+      ]);
+    }
+
+    eventImpl.isTrusted = false;
+
+    return this._dispatch(eventImpl);
+  }
+
+  // https://dom.spec.whatwg.org/#get-the-parent
+  _getTheParent() {
+    return null;
+  }
+
+  // https://dom.spec.whatwg.org/#concept-event-dispatch
+  // legacyOutputDidListenersThrowFlag optional parameter is not necessary here since it is only used by indexDB.
+  _dispatch(eventImpl, legacyTargetOverrideFlag /* , legacyOutputDidListenersThrowFlag */) {
+    let targetImpl = this;
+    let clearTargets = false;
+    let activationTarget = null;
+
+    eventImpl._dispatchFlag = true;
+
+    const targetOverride = legacyTargetOverrideFlag ?
+      idlUtils.implForWrapper(targetImpl._globalObject._document) :
+      targetImpl;
+    let relatedTarget = retarget(eventImpl.relatedTarget, targetImpl);
+
+    if (targetImpl !== relatedTarget || targetImpl === eventImpl.relatedTarget) {
+      const touchTargets = [];
+
+      appendToEventPath(eventImpl, targetImpl, targetOverride, relatedTarget, touchTargets, false);
+
+      const isActivationEvent = MouseEvent.isImpl(eventImpl) && eventImpl.type === "click";
+
+      if (isActivationEvent && targetImpl._hasActivationBehavior) {
+        activationTarget = targetImpl;
+      }
+
+      let slotInClosedTree = false;
+      let slotable = isSlotable(targetImpl) && targetImpl._assignedSlot ? targetImpl : null;
+      let parent = getEventTargetParent(targetImpl, eventImpl);
+
+      // Populate event path
+      // https://dom.spec.whatwg.org/#event-path
+      while (parent !== null) {
+        if (slotable !== null) {
+          if (parent.localName !== "slot") {
+            throw new Error(`JSDOM Internal Error: Expected parent to be a Slot`);
+          }
+
+          slotable = null;
+
+          const parentRoot = nodeRoot(parent);
+          if (isShadowRoot(parentRoot) && parentRoot.mode === "closed") {
+            slotInClosedTree = true;
+          }
+        }
+
+        if (isSlotable(parent) && parent._assignedSlot) {
+          slotable = parent;
+        }
+
+        relatedTarget = retarget(eventImpl.relatedTarget, parent);
+
+        if (
+          (isNode(parent) && isShadowInclusiveAncestor(nodeRoot(targetImpl), parent)) ||
+          idlUtils.wrapperForImpl(parent).constructor.name === "Window"
+        ) {
+          if (isActivationEvent && eventImpl.bubbles && activationTarget === null &&
+              parent._hasActivationBehavior) {
+            activationTarget = parent;
+          }
+
+          appendToEventPath(eventImpl, parent, null, relatedTarget, touchTargets, slotInClosedTree);
+        } else if (parent === relatedTarget) {
+          parent = null;
+        } else {
+          targetImpl = parent;
+
+          if (isActivationEvent && activationTarget === null && targetImpl._hasActivationBehavior) {
+            activationTarget = targetImpl;
+          }
+
+          appendToEventPath(eventImpl, parent, targetImpl, relatedTarget, touchTargets, slotInClosedTree);
+        }
+
+        if (parent !== null) {
+          parent = getEventTargetParent(parent, eventImpl);
+        }
+
+        slotInClosedTree = false;
+      }
+
+      let clearTargetsStructIndex = -1;
+      for (let i = eventImpl._path.length - 1; i >= 0 && clearTargetsStructIndex === -1; i--) {
+        if (eventImpl._path[i].target !== null) {
+          clearTargetsStructIndex = i;
+        }
+      }
+      const clearTargetsStruct = eventImpl._path[clearTargetsStructIndex];
+
+      clearTargets =
+          (isNode(clearTargetsStruct.target) && isShadowRoot(nodeRoot(clearTargetsStruct.target))) ||
+          (isNode(clearTargetsStruct.relatedTarget) && isShadowRoot(nodeRoot(clearTargetsStruct.relatedTarget)));
+
+      if (activationTarget !== null && activationTarget._legacyPreActivationBehavior) {
+        activationTarget._legacyPreActivationBehavior();
+      }
+
+      for (let i = eventImpl._path.length - 1; i >= 0; --i) {
+        const struct = eventImpl._path[i];
+
+        if (struct.target !== null) {
+          eventImpl.eventPhase = EVENT_PHASE.AT_TARGET;
+        } else {
+          eventImpl.eventPhase = EVENT_PHASE.CAPTURING_PHASE;
+        }
+
+        invokeEventListeners(struct, eventImpl, "capturing");
+      }
+
+      for (let i = 0; i < eventImpl._path.length; i++) {
+        const struct = eventImpl._path[i];
+
+        if (struct.target !== null) {
+          eventImpl.eventPhase = EVENT_PHASE.AT_TARGET;
+        } else {
+          if (!eventImpl.bubbles) {
+            continue;
+          }
+
+          eventImpl.eventPhase = EVENT_PHASE.BUBBLING_PHASE;
+        }
+
+        invokeEventListeners(struct, eventImpl, "bubbling");
+      }
+    }
+
+    eventImpl.eventPhase = EVENT_PHASE.NONE;
+
+    eventImpl.currentTarget = null;
+    eventImpl._path = [];
+    eventImpl._dispatchFlag = false;
+    eventImpl._stopPropagationFlag = false;
+    eventImpl._stopImmediatePropagationFlag = false;
+
+    if (clearTargets) {
+      eventImpl.target = null;
+      eventImpl.relatedTarget = null;
+    }
+
+    if (activationTarget !== null) {
+      if (!eventImpl._canceledFlag) {
+        activationTarget._activationBehavior(eventImpl);
+      } else if (activationTarget._legacyCanceledActivationBehavior) {
+        activationTarget._legacyCanceledActivationBehavior();
+      }
+    }
+
+    return !eventImpl._canceledFlag;
+  }
+}
+
+module.exports = {
+  implementation: EventTargetImpl
+};
+
+// https://dom.spec.whatwg.org/#concept-event-listener-invoke
+function invokeEventListeners(struct, eventImpl, phase) {
+  const structIndex = eventImpl._path.indexOf(struct);
+  for (let i = structIndex; i >= 0; i--) {
+    const t = eventImpl._path[i];
+    if (t.target) {
+      eventImpl.target = t.target;
+      break;
+    }
+  }
+
+  eventImpl.relatedTarget = idlUtils.wrapperForImpl(struct.relatedTarget);
+
+  if (eventImpl._stopPropagationFlag) {
+    return;
+  }
+
+  eventImpl.currentTarget = idlUtils.wrapperForImpl(struct.item);
+
+  const listeners = struct.item._eventListeners;
+  innerInvokeEventListeners(eventImpl, listeners, phase, struct.itemInShadowTree);
+}
+
+// https://dom.spec.whatwg.org/#concept-event-listener-inner-invoke
+function innerInvokeEventListeners(eventImpl, listeners, phase, itemInShadowTree) {
+  let found = false;
+
+  const { type, target } = eventImpl;
+  const wrapper = idlUtils.wrapperForImpl(target);
+
+  if (!listeners || !listeners[type]) {
+    return found;
+  }
+
+  // Copy event listeners before iterating since the list can be modified during the iteration.
+  const handlers = listeners[type].slice();
+
+  for (let i = 0; i < handlers.length; i++) {
+    const listener = handlers[i];
+    const { capture, once, passive } = listener.options;
+
+    // Check if the event listener has been removed since the listeners has been cloned.
+    if (!listeners[type].includes(listener)) {
+      continue;
+    }
+
+    found = true;
+
+    if (
+      (phase === "capturing" && !capture) ||
+      (phase === "bubbling" && capture)
+    ) {
+      continue;
+    }
+
+    if (once) {
+      listeners[type].splice(listeners[type].indexOf(listener), 1);
+    }
+
+    let window = null;
+    if (wrapper && wrapper._document) {
+      // Triggered by Window
+      window = wrapper;
+    } else if (target._ownerDocument) {
+      // Triggered by most webidl2js'ed instances
+      window = target._ownerDocument._defaultView;
+    } else if (wrapper._ownerDocument) {
+      // Currently triggered by some non-webidl2js things
+      window = wrapper._ownerDocument._defaultView;
+    }
+
+    let currentEvent;
+    if (window) {
+      currentEvent = window._currentEvent;
+      if (!itemInShadowTree) {
+        window._currentEvent = eventImpl;
+      }
+    }
+
+    if (passive) {
+      eventImpl._inPassiveListenerFlag = true;
+    }
+
+    try {
+      listener.callback.call(eventImpl.currentTarget, eventImpl);
+    } catch (e) {
+      if (window) {
+        reportException(window, e);
+      }
+      // Errors in window-less documents just get swallowed... can you think of anything better?
+    }
+
+    eventImpl._inPassiveListenerFlag = false;
+
+    if (window) {
+      window._currentEvent = currentEvent;
+    }
+
+    if (eventImpl._stopImmediatePropagationFlag) {
+      return found;
+    }
+  }
+
+  return found;
+}
+
+/**
+ * Normalize the event listeners options argument in order to get always a valid options object
+ * @param   {Object} options         - user defined options
+ * @param   {Array} defaultBoolKeys  - boolean properties that should belong to the options object
+ * @returns {Object} object containing at least the "defaultBoolKeys"
+ */
+function normalizeEventHandlerOptions(options, defaultBoolKeys) {
+  const returnValue = { signal: null };
+
+  // no need to go further here
+  if (typeof options === "boolean" || options === null || typeof options === "undefined") {
+    returnValue.capture = Boolean(options);
+    return returnValue;
+  }
+
+  // non objects options so we typecast its value as "capture" value
+  if (typeof options !== "object") {
+    returnValue.capture = Boolean(options);
+    // at this point we don't need to loop the "capture" key anymore
+    defaultBoolKeys = defaultBoolKeys.filter(k => k !== "capture");
+  }
+
+  for (const key of defaultBoolKeys) {
+    returnValue[key] = Boolean(options[key]);
+  }
+
+  if (options.signal !== undefined) {
+    returnValue.signal = options.signal;
+  }
+
+  return returnValue;
+}
+
+// https://dom.spec.whatwg.org/#concept-event-path-append
+function appendToEventPath(eventImpl, target, targetOverride, relatedTarget, touchTargets, slotInClosedTree) {
+  const itemInShadowTree = isNode(target) && isShadowRoot(nodeRoot(target));
+  const rootOfClosedTree = isShadowRoot(target) && target.mode === "closed";
+
+  eventImpl._path.push({
+    item: target,
+    itemInShadowTree,
+    target: targetOverride,
+    relatedTarget,
+    touchTargets,
+    rootOfClosedTree,
+    slotInClosedTree
+  });
+}

node_modules/jsdom/lib/jsdom/living/events/FocusEvent-impl.js

@@ -0,0 +1,9 @@
+"use strict";
+const UIEventImpl = require("./UIEvent-impl").implementation;
+
+const FocusEventInit = require("../generated/FocusEventInit");
+
+class FocusEventImpl extends UIEventImpl {}
+FocusEventImpl.defaultInit = FocusEventInit.convert(undefined, undefined);
+
+exports.implementation = FocusEventImpl;

node_modules/jsdom/lib/jsdom/living/events/HashChangeEvent-impl.js

@@ -0,0 +1,14 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const HashChangeEventInit = require("../generated/HashChangeEventInit");
+
+class HashChangeEventImpl extends EventImpl {
+
+}
+HashChangeEventImpl.defaultInit = HashChangeEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: HashChangeEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/InputEvent-impl.js

@@ -0,0 +1,11 @@
+"use strict";
+const UIEventImpl = require("./UIEvent-impl").implementation;
+const InputEventInit = require("../generated/InputEventInit");
+
+// https://w3c.github.io/uievents/#interface-inputevent
+class InputEventImpl extends UIEventImpl { }
+InputEventImpl.defaultInit = InputEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: InputEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/KeyboardEvent-impl.js

@@ -0,0 +1,29 @@
+"use strict";
+
+const { mixin } = require("../../utils");
+const EventModifierMixinImpl = require("./EventModifierMixin-impl").implementation;
+const UIEventImpl = require("./UIEvent-impl").implementation;
+
+const KeyboardEventInit = require("../generated/KeyboardEventInit");
+
+class KeyboardEventImpl extends UIEventImpl {
+  initKeyboardEvent(type, bubbles, cancelable, view, key, location, ctrlKey, altKey, shiftKey, metaKey) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initUIEvent(type, bubbles, cancelable, view, 0);
+    this.key = key;
+    this.location = location;
+    this.ctrlKey = ctrlKey;
+    this.altKey = altKey;
+    this.shiftKey = shiftKey;
+    this.metaKey = metaKey;
+  }
+}
+mixin(KeyboardEventImpl.prototype, EventModifierMixinImpl.prototype);
+KeyboardEventImpl.defaultInit = KeyboardEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: KeyboardEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/MessageEvent-impl.js

@@ -0,0 +1,25 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const MessageEventInit = require("../generated/MessageEventInit");
+
+class MessageEventImpl extends EventImpl {
+  initMessageEvent(type, bubbles, cancelable, data, origin, lastEventId, source, ports) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initEvent(type, bubbles, cancelable);
+    this.data = data;
+    this.origin = origin;
+    this.lastEventId = lastEventId;
+    this.source = source;
+    this.ports = ports;
+  }
+}
+MessageEventImpl.defaultInit = MessageEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: MessageEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/MouseEvent-impl.js

@@ -0,0 +1,49 @@
+"use strict";
+
+const { mixin } = require("../../utils");
+const EventModifierMixinImpl = require("./EventModifierMixin-impl").implementation;
+const UIEventImpl = require("./UIEvent-impl").implementation;
+
+const MouseEventInit = require("../generated/MouseEventInit");
+
+class MouseEventImpl extends UIEventImpl {
+  initMouseEvent(
+    type,
+    bubbles,
+    cancelable,
+    view,
+    detail,
+    screenX,
+    screenY,
+    clientX,
+    clientY,
+    ctrlKey,
+    altKey,
+    shiftKey,
+    metaKey,
+    button,
+    relatedTarget
+  ) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initUIEvent(type, bubbles, cancelable, view, detail);
+    this.screenX = screenX;
+    this.screenY = screenY;
+    this.clientX = clientX;
+    this.clientY = clientY;
+    this.ctrlKey = ctrlKey;
+    this.altKey = altKey;
+    this.shiftKey = shiftKey;
+    this.metaKey = metaKey;
+    this.button = button;
+    this.relatedTarget = relatedTarget;
+  }
+}
+mixin(MouseEventImpl.prototype, EventModifierMixinImpl.prototype);
+MouseEventImpl.defaultInit = MouseEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: MouseEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/PageTransitionEvent-impl.js

@@ -0,0 +1,20 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const PageTransitionEventInit = require("../generated/PageTransitionEventInit");
+
+// https://html.spec.whatwg.org/multipage/browsing-the-web.html#pagetransitionevent
+class PageTransitionEventImpl extends EventImpl {
+  initPageTransitionEvent(type, bubbles, cancelable, persisted) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initEvent(type, bubbles, cancelable);
+    this.persisted = persisted;
+  }
+}
+PageTransitionEventImpl.defaultInit = PageTransitionEventInit.convert(undefined, undefined);
+
+exports.implementation = PageTransitionEventImpl;

node_modules/jsdom/lib/jsdom/living/events/PopStateEvent-impl.js

@@ -0,0 +1,9 @@
+"use strict";
+const EventImpl = require("./Event-impl.js").implementation;
+
+const PopStateEventInit = require("../generated/PopStateEventInit");
+
+class PopStateEventImpl extends EventImpl {}
+PopStateEventImpl.defaultInit = PopStateEventInit.convert(undefined, undefined);
+
+exports.implementation = PopStateEventImpl;

node_modules/jsdom/lib/jsdom/living/events/ProgressEvent-impl.js

@@ -0,0 +1,14 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const ProgressEventInit = require("../generated/ProgressEventInit");
+
+class ProgressEventImpl extends EventImpl {
+
+}
+ProgressEventImpl.defaultInit = ProgressEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: ProgressEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/StorageEvent-impl.js

@@ -0,0 +1,26 @@
+"use strict";
+
+const EventImpl = require("./Event-impl").implementation;
+
+const StorageEventInit = require("../generated/StorageEventInit");
+
+// https://html.spec.whatwg.org/multipage/webstorage.html#the-storageevent-interface
+class StorageEventImpl extends EventImpl {
+  initStorageEvent(type, bubbles, cancelable, key, oldValue, newValue, url, storageArea) {
+    if (this._dispatchFlag) {
+      return;
+    }
+
+    this.initEvent(type, bubbles, cancelable);
+    this.key = key;
+    this.oldValue = oldValue;
+    this.newValue = newValue;
+    this.url = url;
+    this.storageArea = storageArea;
+  }
+}
+StorageEventImpl.defaultInit = StorageEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: StorageEventImpl
+};

node_modules/jsdom/lib/jsdom/living/events/TouchEvent-impl.js

@@ -0,0 +1,14 @@
+"use strict";
+
+const UIEventImpl = require("./UIEvent-impl").implementation;
+
+const TouchEventInit = require("../generated/TouchEventInit");
+
+class TouchEventImpl extends UIEventImpl {
+
+}
+TouchEventImpl.defaultInit = TouchEventInit.convert(undefined, undefined);
+
+module.exports = {
+  implementation: TouchEventImpl
+};