| offsetParent should not leak nodes in user agent Shadow DOM. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS child.offsetParent is shadow.positionedElement | |
| PASS child.offsetParent is container | |
| PASS child.offsetParent is null | |
| PASS child.offsetParent is container | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |