code: function DOMRequest() {
    this.onsuccess = null;
    this.onerror = null;
    this.error = null;
    this.result = undefined;
    this.readyState = "pending";
  }
docs: /* This Source Code Form is subject to the terms of the Mozilla Public
  License, v. 2.0. If a copy of the MPL was not distributed with this
  file, You can obtain one at http://mozilla.org/MPL/2.0/.