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Test Info:
- Manifest: dom/base/crashtests/crashtests.list
<!doctype html>
<script>
  function start () {
    const frame = document.createElement('frame')
    document.documentElement.appendChild(frame)
    const o1 = document.createElement('c')
    o1.insertBefore(frame, o1.childNodes[0])
    SpecialPowers.gc();
    const xhr = new XMLHttpRequest()
    xhr.open('P', '', false)
    xhr.send()
  }
  document.addEventListener('DOMContentLoaded', start)
</script>