| main frame - has 1 onunload handler(s) | |
| Checks that trying to do a synchronous XHR in a unload event handler is not allowed. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS Doing a synchronous XHR in the unload event handler threw an exception | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |