<html>
<head>
<title>Loading...</title>
</head>
<body onload="attachUnloadListener()">
<script>
function attachUnloadListener() {
window.addEventListener('unload', onUnload, false);
document.title = "sync xhr on unload";
}
var req = new XMLHttpRequest();
function onUnload() {
req.open('GET','download-test1.lib', false);
req.send(null);
}
</script>
<p>Navigate to another page to trigger synch xmlhttprequest</p>
</body>
</html>