| <!DOCTYPE html> |
| <script> |
| async function service_worker_unregister(scope) { |
| var absoluteScope = (new URL(scope, window.location).href); |
| const registration = await navigator.serviceWorker.getRegistration(scope); |
| if (registration && registration.scope === absoluteScope) |
| return registration.unregister(); |
| } |
| |
| async function service_worker_unregister_and_register(url, scope, options = {}) { |
| if (!scope || scope.length == 0) |
| return Promise.reject(new Error('tests must define a scope')); |
| |
| options.scope = scope; |
| await service_worker_unregister(scope); |
| return navigator.serviceWorker.register(url, options); |
| } |
| |
| function wait_for_state_activated(worker) { |
| if (worker.state === 'activated') |
| return Promise.resolve(); |
| |
| if (worker.state === 'redundant') { |
| return Promise.reject(new Error('worker is redundant')); |
| } |
| |
| return new Promise(function(resolve) { |
| worker.addEventListener('statechange', function() { |
| if (worker.state === 'activated') |
| resolve(); |
| }); |
| }); |
| } |
| |
| (async () => { |
| var script = '/resource-timing/resources/sw.js'; |
| var scope = '/resource-timing/resources/'; |
| const registration = await service_worker_unregister_and_register(script, scope); |
| await wait_for_state_activated(registration.installing); |
| const opener = window.opener; |
| if (!opener) |
| return; |
| |
| opener.postMessage("installed", "*"); |
| async function unregister(e) { |
| if (e.data === "unregister") { |
| await registration.unregister(); |
| opener.postMessage("unregistered", "*"); |
| } |
| } |
| window.addEventListener("message", e => unregister(e)); |
| })(); |
| |
| </script> |
