95 lines
2.3 KiB
JavaScript
95 lines
2.3 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/**
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* Bug 1767407 - Shim Firebase
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*
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* Sites relying on firebase-messaging.js will break in Private
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* browsing mode because it assumes that they require service
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* workers and indexedDB, when they generally do not.
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*/
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/* globals cloneInto */
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(function () {
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const win = window.wrappedJSObject;
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const emptyObj = new win.Object();
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const emptyArr = new win.Array();
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const emptyMsg = cloneInto({ message: "" }, window);
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const noOpFn = cloneInto(function () {}, window, { cloneFunctions: true });
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if (!win.indexedDB) {
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const idb = {
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open: () => win.Promise.reject(emptyMsg),
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};
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Object.defineProperty(win, "indexedDB", {
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value: cloneInto(idb, window, { cloneFunctions: true }),
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});
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}
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// bug 1778993
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for (const name of [
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"IDBCursor",
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"IDBDatabase",
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"IDBIndex",
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"IDBOpenDBRequest",
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"IDBRequest",
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"IDBTransaction",
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]) {
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if (!win[name]) {
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Object.defineProperty(win, name, { value: emptyObj });
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}
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}
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if (!win.serviceWorker) {
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const sw = {
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addEventListener() {},
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getRegistrations: () => win.Promise.resolve(emptyArr),
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register: () => win.Promise.reject(emptyMsg),
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};
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Object.defineProperty(navigator.wrappedJSObject, "serviceWorker", {
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value: cloneInto(sw, window, { cloneFunctions: true }),
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});
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// bug 1779536
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Object.defineProperty(navigator.wrappedJSObject.serviceWorker, "ready", {
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value: new win.Promise(noOpFn),
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});
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}
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// bug 1750699
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if (!win.PushManager) {
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Object.defineProperty(win, "PushManager", { value: emptyObj });
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}
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// bug 1750699
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if (!win.PushSubscription) {
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const ps = {
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prototype: {
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getKey() {},
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},
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};
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Object.defineProperty(win, "PushSubscription", {
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value: cloneInto(ps, window, { cloneFunctions: true }),
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});
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}
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// bug 1750699
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if (!win.ServiceWorkerRegistration) {
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const swr = {
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prototype: {
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showNotification() {},
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},
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};
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Object.defineProperty(win, "ServiceWorkerRegistration", {
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value: cloneInto(swr, window, { cloneFunctions: true }),
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});
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}
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})();
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