ssert_false(one.cancelBubble, "initEvent() must set cancelBubble to false. [bubbles=true]");
  // Re-initialization.
  one.cancelBubble = true;
  one.initEvent('foo', true/*bubbles*/, false/*cancelable*/);
  assert_false(one.cancelBubble, "2nd initEvent() call must set cancelBubble to false. [bubbles=true]");

  // Event which doesn't bubble.
  var two = document.createEvent('Event');
  two.cancelBubble = true;
  two.initEvent('foo', false/*bubbles*/, false/*cancelable*/);
  assert_false(two.cancelBubble, "