third_party/WebKit/LayoutTests/fast/images/update-alt-text.html

   1 <!doctype HTML>
   2 Ensure we can update the alt text on an image that has failed to load.
   3 <img id="img" src="none" alt="FAIL">
   4 <script>
   5     document.body.offsetTop;
   6     var img = document.getElementById('img');
   7     img.onerror = function() { img.alt = "PASS"; }
   8 </script>