<!DOCTYPE HTML>
<html>

<head>
  <meta charset="utf-8">
  <title>The navigation_id Detached iframe Page.</title>
</head>

<body>
  <script>
      window.addEventListener("load", () => {
        setTimeout(() => {
          const container = window.frameElement;
          container.remove();
        }, 10);
        performance.mark('mark-window-detached-frame');
      });
  </script>
</body>

</html>