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<!DOCTYPE html>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1339722
-->
<head>
<meta charset="utf-8" />
<title>Test for Bug 1339722</title>
<script 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-modify-request" or document-on-modify-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
* destroyed in the middle of ReallyStartLoading.
* 4. Verify that it doesn't crash.
**/
// This topic used to be http-on-useragent-request, but that got removed in
// bug 1513574. on-modify-request is called around the same time, and should
// behave similarly.
const TOPIC = "document-on-modify-request";
let win;
const observe = (subject, topic, data) => {
info("Got " + topic);
Services.obs.removeObserver(observe, TOPIC);
// Query window proxy so it triggers DOMWindowCreated.
let channel;
try {
// We need to QI nsIHttpChannel in order to load the interface's
// methods / attributes for later code that could assume we are dealing
// with a nsIHttpChannel.
channel = subject.QueryInterface(Ci.nsIHttpChannel);
} catch (e) {
channel = subject.QueryInterface(Ci.nsIIdentChannel);
}
win = channel.notificationCallbacks.getInterface(Ci.mozIDOMWindowProxy);
};
Services.obs.addObserver(observe, TOPIC);
let docShell = SpecialPowers.wrap(window).docShell;
docShell.chromeEventHandler.addEventListener(
"DOMWindowCreated",
function handler(e) {
info("Got DOMWindowCreated");
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);
},
{ once: true }
);
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>
|
