| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>webpage for service-worker-repeat-fetch</title> | |
| <script> | |
| async function installSWAndWaitForActivated() { | |
| const reg = await navigator.serviceWorker.register( | |
| 'service-worker-repeat-fetch.js'); | |
| const worker = reg.installing || reg.waiting || reg.active; | |
| if (worker.state === 'activated') | |
| return; | |
| return new Promise(resolve => { | |
| worker.addEventListener('statechange', () => { | |
| if (worker.state === 'activated') | |
| resolve(); | |
| }); | |
| }); | |
| } | |
| </script> | |
| </head> | |
| </html> |