speechrecognition-no-crash-detached.html

<!doctype html>
<title>Accessing SpeechRecognition on a detached window should not crash.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script type="module">
import {MockSpeechRecognizer} from '../resources/mock-speechrecognizer.js';

const mock = new MockSpeechRecognizer();

async_test(t => {
  const w = window.open('../resources/window-postmessage-open-close.html');
  let recognitionConstructor;
  let recognition;

  window.addEventListener('message', t.step_func(event => {
    if (event.data == "opened") {
      recognitionConstructor = w.webkitSpeechRecognition;
      recognition = new recognitionConstructor();
      w.close();
    } else if (event.data == "closed") {
      recognition.start();
      recognition.stop();
      recognition.abort();
      recognition = new recognitionConstructor();
      recognition.start();
      recognition.stop();
      recognition.abort();
      t.done();
    }
  }), false);
});

</script>

chromium/third_party/blink/web_tests/wpt_internal/speech/scripted/speechrecognition-no-crash-detached.html