gecko/browser/base/content/test/browser_bug441778.js

47 lines
1.6 KiB
JavaScript

/* 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/. */
/*
* Test the fix for bug 441778 to ensure site-specific page zoom doesn't get
* modified by sub-document loads of content from a different domain.
*/
function test() {
waitForExplicitFinish();
const TEST_PAGE_URL = 'data:text/html,<body><iframe src=""></iframe></body>';
const TEST_IFRAME_URL = "http://test2.example.org/";
Task.spawn(function () {
// Prepare the test tab
let tab = gBrowser.addTab();
yield FullZoomHelper.selectTabAndWaitForLocationChange(tab);
let testBrowser = tab.linkedBrowser;
yield FullZoomHelper.load(tab, TEST_PAGE_URL);
// Change the zoom level and then save it so we can compare it to the level
// after loading the sub-document.
FullZoom.enlarge();
var zoomLevel = ZoomManager.zoom;
// Start the sub-document load.
let deferred = Promise.defer();
executeSoon(function () {
testBrowser.addEventListener("load", function (e) {
testBrowser.removeEventListener("load", arguments.callee, true);
is(e.target.defaultView.location, TEST_IFRAME_URL, "got the load event for the iframe");
is(ZoomManager.zoom, zoomLevel, "zoom is retained after sub-document load");
gBrowser.removeCurrentTab();
deferred.resolve();
}, true);
content.document.querySelector("iframe").src = TEST_IFRAME_URL;
});
yield deferred.promise;
}).then(finish, FullZoomHelper.failAndContinue(finish));
}