browser_storage_cache_error.js

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/* 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/. */

"use strict";

// Test handling errors in CacheStorage

add_task(async function () {

  // Open the URL in a private browsing window.

  const win = await BrowserTestUtils.openNewBrowserWindow({ private: true });

  const tab = win.gBrowser.selectedBrowser;

  const triggeringPrincipal =

    Services.scriptSecurityManager.getSystemPrincipal();

  tab.loadURI(

    Services.io.newURI(ALT_DOMAIN_SECURED + "storage-cache-error.html"),

    { triggeringPrincipal }

);

  await BrowserTestUtils.browserLoaded(tab);

  // On enumerating cache storages, CacheStorage::Keys would throw a

  // DOM security exception. We'd like to verify storage panel still work in

  // this case.

  await openStoragePanel({ tab: win.gBrowser.selectedTab });

  const cacheItemId = ["Cache", "https://test2.example.org"];

  await selectTreeItem(cacheItemId);

ok(

    gUI.tree.isSelected(cacheItemId),

    `The item ${cacheItemId.join(" > ")} is present in the tree`

);

  await BrowserTestUtils.closeWindow(win);

});