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<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="content-type" content="text/html; charset=utf-8">
  <title>Page broadcast channel creator for first party isolation</title>
</head>
<body>
  <div id="display" style="white-space:pre; font-family:monospace; display:inline;"></div>
  <iframe id="iframe" src="file_broadcastChanneliFrame.html"></iframe>>
<script type="text/javascript">
let bc = new BroadcastChannel("testBroadcastChannel");
bc.onmessage = function(e) {
  // eslint-disable-next-line no-unsanitized/property
  document.getElementById("display").innerHTML = e.data;
};
</script>
</body>