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content / test / data / service_worker / fetch_from_service_worker.html [blame]
<script>
async function setup() {
await navigator.serviceWorker.register('fetch_from_service_worker.js');
await navigator.serviceWorker.ready;
return 'ready';
}
function fetch_from_service_worker(url) {
return new Promise(async resolve => {
const registration = await navigator.serviceWorker.ready;
const channel = new MessageChannel();
channel.port1.onmessage = e => { resolve(e.data); };
registration.active.postMessage({url}, [channel.port2]);
});
}
</script>