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<html>
<head>
<script>
window.onpageshow = function() {
let bc = new BroadcastChannel("test_reload");
bc.onmessage = function(event) {
if (event.data == "reload") {
bc.close();
location.reload(true);
} else if (event.data == "close") {
bc.postMessage("closed");
bc.close();
window.close();
}
}
bc.postMessage("pageshow");
}
</script>
</head>
<body>
</body>
</html>