chromium/third_party/blink/web_tests/external/wpt/audio-output/secure-context.html

<!doctype html>
<html>
<head>
<title>setSinkId and sinkId are SecureContext</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
</head>
<body>
<script>
let audio;
setup(() => {
  assert_false(window.isSecureContext,
               "This test must be run in a non secure context");
  audio = document.createElement('audio');
});
for (const prop of ['sinkId', 'setSinkId']) {
  test(() => {
    assert_false(prop in audio);
  }, `${prop} exposure`);
}
</script>
</body>
</html>