| Test that WebKitMutationObserver.disconnect cancels pending delivery | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| Disconnecting should cancel any pending delivery... | |
| PASS mutations is null | |
| ...and re-observing should not see any of the previously-generated records. | |
| PASS mutations.length is 1 | |
| PASS mutations[0].attributeName is "bar" | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |