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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/speculation-rules/prerender/resources/utils.js"></script>
<script src="/speculation-rules/prerender/resources/deferred-promise-utils.js"></script>
<script>
const params = new URLSearchParams(location.search);
// The main test page (restriction-background-sync.tentative.https.html)
// loads the initiator page, then the initiator page will prerender itself
// with the `prerendering` parameter.
const isPrerendering = params.has('prerendering');
if (!isPrerendering) {
loadInitiatorPage();
} else {
async function loadPrerenderPage() {
const prerenderEventCollector = new PrerenderEventCollector();
const scope = `resources/`;
const registration = await navigator.serviceWorker.getRegistration(scope);
const register_promise = registration.periodicSync.register(
'periodic', { minInterval: 1000 });
prerenderEventCollector.start(register_promise, 'periodicSync.register');
}
loadPrerenderPage();
}
</script>
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