| Test that pages and workers can send MessagePorts to one another. Should print "DONE" when done. | |
| PASS: evt.ports = [] as expected | |
| PASS: Received message port | |
| PASS: Received response from Worker via MessagePort | |
| PASS: Got port from worker | |
| PASS: Received final response from worker | |
| PASS: Got 1000 messages | |
| DONE | |