| PASS: No service worker is initially registered for this origin | |
| PASS: No service worker is initially registered for this origin in private session | |
| Registered! | |
| PASS: registration object's scope is valid | |
| PASS: registration object's updateViaCache is valid | |
| PASS: A service worker is now registered for this origin | |
| PASS: No service worker is registered for this origin in private session | |
| PASS: registering a script which does not exist rejected the promise | |