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