| Checks that MessageEvent.source window is correct when postMessage() is called cross-frame via a function in the other frame. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS messageEvent.data is "msg" | |
| PASS messageEvent.source is frames[0] | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |