<!-- Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ -->
<!doctype html>
<html>
<head>
<meta charset="utf-8"/>
<title>Performance tool + garbage collection test page</title>
</head>
<body>
<script type="text/javascript">
"use strict";
var x = 1;
window.test = function () {
SpecialPowers.Cu.forceGC();
document.body.style.borderTop = x + "px solid red";
x = 1 ^ x;
// flush pending reflows
document.body.innerHeight;
// Prevent this script from being garbage collected.
setTimeout(window.test, 100);
};
test();
</script>
</body>
</html>