| <!DOCTYPE html> |
| <script src="../../../resources/js-test.js"></script> |
| <body></body> |
| <script> |
| description('Test case that a MutationObserver is deleted while events are collected for it. crbug.com/557981'); |
| |
| var div = document.createElement('div'); |
| var div2 = document.createElement('div'); |
| document.body.appendChild(div); |
| |
| observer = new MutationObserver(function() {}); |
| observer.observe(div, {childList: true}); |
| |
| var script = document.createElement('script'); |
| script.textContent = 'unregister_observer()'; |
| div2.appendChild(script); |
| div.appendChild(div2); |
| |
| function unregister_observer() { |
| observer.disconnect(); |
| delete observer; |
| gc(); |
| } |
| </script> |
