Source: lib/polyfill/indexed_db.js

  1. /**
  2.  * @license
  3.  * Copyright 2016 Google Inc.
  4.  *
  5.  * Licensed under the Apache License, Version 2.0 (the "License");
  6.  * you may not use this file except in compliance with the License.
  7.  * You may obtain a copy of the License at
  8.  *
  9.  *     http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  18. goog.provide('shaka.polyfill.IndexedDB');
  20. goog.require('goog.asserts');
  21. goog.require('shaka.log');
  22. goog.require('shaka.polyfill.register');
  25. /**
  26.  * @namespace shaka.polyfill.IndexedDB
  27.  *
  28.  * @summary A polyfill to patch IndexedDB bugs.
  29.  */
  32. /**
  33.  * Install the polyfill if needed.
  34.  */
  35. shaka.polyfill.IndexedDB.install = function() {
  36.   shaka.log.debug('IndexedDB.install');
  38.   let agent = navigator.userAgent;
  39.   if (agent && agent.indexOf('CrKey') >= 0) {
  40.     shaka.log.debug('Removing IndexedDB from ChromeCast');
  41.     delete window.indexedDB;
  42.     goog.asserts.assert(
  43.         !window.indexedDB, 'Failed to override window.indexedDB');
  44.   }
  45. };
  47. shaka.polyfill.register(shaka.polyfill.IndexedDB.install);