const PATH = "http://example.com/browser/dom/tests/mochitest/ajax/offline/"; const URL = PATH + "file_simpleManifest.html"; const MANIFEST = PATH + "file_simpleManifest.cacheManifest"; const PREF_NETWORK_PROXY = "network.proxy.type"; add_task(async function test_pref_removes_api() { await BrowserTestUtils.openNewForegroundTab(gBrowser, URL); await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async () => { // Have to use in page checking as IsSecureContextOrObjectIsFromSecureContext is true for spawn() is( content.document.getElementById("hasAppcache").textContent, "no", "Appcache is disabled" ); is( content.document.getElementById("hasOfflineResourceList").textContent, "no", "OfflineResourceList is disabled" ); }); gBrowser.removeCurrentTab(); });