gecko-dev/dom/base/test/test_anonymousContent_xul_window.xul

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<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1020244
Check that XUL windows aren't supported, that the API throws, but doesn't crash.
-->
<window title="Anonymous content in a XUL window"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml"></body>
<box>This is a test box</box>
<script type="application/javascript;version=1.8">
// Insert content
let testElement = document.querySelector("box");
let didThrow = false;
try {
document.insertAnonymousContent(testElement);
} catch (e) {
didThrow = true;
}
ok(didThrow,
"Inserting anonymous content in a XUL document did throw an exception")
</script>
</window>