<script>
  onload = () => {
    if (window.testRunner)
      testRunner.dumpAsText();
    for (let i = 5; i; i--) {
      let iframe = document.createElement('iframe');
      iframe.src = 'resources/media-element-frame-destroyed-crash-subframe.html';
      document.body.appendChild(iframe);
    }
  }
</script>
<p>This test PASS if it does not CRASH.</p>