| Test SharedWorker lifecycle. Will print PASS multiple times, followed by DONE. | |
| PASS: Frame1 closed, shared workers kept running | |
| PASS: Frame2 closed, shared worker2 exited | |
| PASS: Frame3 closed, shared worker3 exited | |
| PASS: Frame4 reloaded | |
| PASS: Frame4 closed, all workers closed | |
| DONE | |