<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1339722 --> <head> <meta charset="utf-8"> <title>Test for Bug 1339722</title> <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="chrome://global/skin"/> <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/> <script type="application/javascript"> /** * Test for Bug 1339722 * 1. Wait for "http-on-useragent-request" for the iframe load. * 2. In the observer, access it's window proxy to trigger DOMWindowCreated. * 3. In the event handler, delete the iframe so that the frameloader would be * destoryed in the middle of ReallyStartLoading. * 4. Verify that it doesn't crash. **/ const {interfaces: Ci, utils: Cu} = Components; Cu.import("resource://gre/modules/Services.jsm"); const TOPIC = 'http-on-useragent-request'; Services.obs.addObserver({ observe(subject, topic, data) { info('Got ' + topic); Services.obs.removeObserver(this, TOPIC); // Query window proxy so it triggers DOMWindowCreated. let channel = subject.QueryInterface(Ci.nsIHttpChannel); let win = channel.notificationCallbacks.getInterface(Ci.mozIDOMWindowProxy); } }, TOPIC, false); let docShell = SpecialPowers.wrap(window) .QueryInterface(Ci.nsIInterfaceRequestor) .getInterface(Ci.nsIDocShell); docShell.chromeEventHandler.addEventListener('DOMWindowCreated', function handler(e) { docShell.chromeEventHandler.removeEventListener('DOMWindowCreated', handler); let iframe = document.getElementById('testFrame'); is(e.target, iframe.contentDocument, 'verify event target'); // Remove the iframe to cause frameloader destroy. iframe.remove(); setTimeout($ => { ok(!document.getElementById('testFrame'), 'verify iframe removed'); SimpleTest.finish(); }, 0); }); SimpleTest.waitForExplicitFinish(); </script> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1339722">Mozilla Bug 1339722</a> <p id="display"></p> <div id="content" style="display: none"></div> <pre id="test"> <div id="frameContainer"> <iframe id="testFrame" src="http://www.example.com"></iframe> </div> </pre> </body> </html>