dom/base/crashtests/1665792.html

   1 <html class="reftest-wait">
   2 <script>
   3 window.onload = () => {
   4   window[0].stop()
   5   window[0].onpagehide = document.createElement("frameset").onload
   6   a.src = ""
   7   setTimeout(function() {
   8     SpecialPowers.wrap(window).printPreview()?.close()
   9     document.documentElement.className = "";
  10   }, 0);
  11 }
  12 </script>
  13 <iframe id="a"></iframe>