audio-setSinkId.https.html

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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>

<audio controls id="beat" src="./bear-av1-opus.mp4" loop></audio>

<script>

// The main test page (restriction-audio-setSinkId.https.html) loads the

// initiator page, then the initiator page will prerender itself with the

// `prerendering` parameter.

const params = new URLSearchParams(location.search);

const isPrerendering = params.has('prerendering');

if (!isPrerendering) {

  const rule_extras = {'target_hint': getTargetHint()};

  loadInitiatorPage(rule_extras);

} else {

  const prerenderEventCollector = new PrerenderEventCollector();

  const promise = beat.setSinkId(

      params.get('sinkId') === 'invalid' ? 'fakeId' : '');

  // The spec, https://wicg.github.io/nav-speculation/prerendering.html#audio-output-patch,

  // mentions selectAudioOutput() but this test uses setSinkId() function.

  prerenderEventCollector.start(promise, 'Audio.setSinkId');

</script>