fenced-frame/navigator-subapp.https.html

<!DOCTYPE html>
<title>navigator.subApp API test</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>

<body>
<script>
promise_test(async () => {
  const frame = attachFencedFrameContext();
  const result = await frame.execute(async () => {
    const expected_error_message =
        'Cannot read properties of undefined (reading \'list\')';
    try {
      const list = await navigator.subApps.list();
      return 'navigator.subApps.list() succeeded';
    } catch (e) {
      if (e.name === 'TypeError' &&
          e.message === expected_error_message) {
        return 'navigator.subApps.list() was disallowed';
      }
      return 'navigator.subApps.list() failed with unknown error' +
          `${e.name} ${e.message}`;
    }
  });
  assert_equals(result, 'navigator.subApps.list() was disallowed');
}, 'navigator.subApps.list() should fail in the fenced frame.');
</script>