third_party/WebKit/LayoutTests/fast/frames/modifications-in-subtree-unload.html

   1 <!DOCTYPE html>
   2
   3 <p>
   4     This tests that you can append children to a subtree that's being removed
   5     from inside of an unload handler on a frame in that subtree.
   6 </p>
   7
   8 <div><iframe src="about:blank"></iframe></div>
   9
  10 <script>
  11 div = document.querySelector("div");
  12 iframe = document.querySelector("iframe");
  13 iframe.contentWindow.onunload = function() {
  14     try {
  15         div.appendChild(document.createElement('span'));
  16         document.body.appendChild(document.createTextNode('PASS'));
  17     } catch (e) {
  18         document.body.appendChild(document.createTextNode('FAIL: ' + e));
  19     }
  20 };
  21
  22 div.parentNode.removeChild(div);
  23 </script>