| This test checks that the page visibility event propagation does not crash the browser when frames are added / deleted. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| Loaded all frames. | |
| Visibility of main document changed. | |
| Visibility of sub frame 2 changed. | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |