| <body></body> |
| <script> |
| // |kThirdPartyServiceWorker| from web_feature.mojom. |
| const kFeature = 3007; |
| |
| async function setupServiceWorker() { |
| await navigator.serviceWorker.register('registration-worker.js'); |
| await navigator.serviceWorker.ready; |
| } |
| |
| async function verifyUseCounter() { |
| await window.internals.observeUseCounter(document, kFeature); |
| } |
| |
| window.onmessage = (msg) => { |
| if (msg.data == 'unregister') { |
| navigator.serviceWorker.getRegistration() |
| .then(reg => { |
| if (reg) |
| return reg.unregister(); |
| }) |
| .then(successful => { |
| if (successful) { |
| msg.source.postMessage('unregister_done', '*'); |
| } else { |
| msg.source.postMessage('unregister_failed', '*'); |
| } |
| }); |
| } else { |
| msg.source.postMessage('unexpected_message', '*'); |
| } |
| }; |
| |
| window.onload = function() { |
| setupServiceWorker(); |
| verifyUseCounter(); |
| if (window.internals.isUseCounted(document, kFeature)) { |
| window.parent.postMessage('verified_has_use_counter', '*'); |
| } |
| }; |
| |
| </script> |
