layout/base/crashtests/1486521.html


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<script>
window.onload=function() {
  a.options[10] = b;
  document.execCommand("selectAll", false);
  document.activeElement.hidden = true;
  a.options.selectedIndex = 1;
}
</script>
<input contenteditable>
<select id="a" multiple>
<option id="b" selected>