| After redo | |
| Verifies that undo and redo callback handlers survive garbage collection. This test requires WebKitTestRunner. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS text.textContent is "After undo" | |
| PASS text.textContent is "After redo" | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |