web-share.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>

assert_true(document.prerendering);

async function invokeWebShareAPI(){

  const bc = new PrerenderChannel('prerender-channel');

  try {

    const _ = await navigator.share({url: 'https://a.test'});

    bc.postMessage('unexpected success');

  } catch (err){

    bc.postMessage(err.name);

  } finally {

    bc.close();

invokeWebShareAPI();

</script>