gecko-dev/dom/base/test/test_bug1314032.html

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HTML

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Test for Bug 1314032</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1314032">Mozilla Bug 1243846</a>
<p id="display"></p>
<pre id="test">
<script type="application/javascript">
let win = window.open(URL.createObjectURL(new Blob([
'<meta charset="utf-8">' +
'<script>' +
'let observer = new IntersectionObserver(([entry]) => {' +
'document.body.textContent += entry.time' +
'});' +
'observer.observe(document.documentElement);' +
'<\/script>'
], {'type': 'text/html'})));
win.onload = function () {
win.close();
ok(true);
SimpleTest.finish();
}
SimpleTest.waitForExplicitFinish();
</script>
</pre>
<div id="log">
</div>
</body>
</html>