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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
 - This WPT test may be referenced by the following Test IDs:
            
- /fenced-frame/web-usb.https.html - WPT Dashboard Interop Dashboard
 
 
<!DOCTYPE html>
<title>Test WebUSB navigator.usb.requestDevice()</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();
  await frame.execute(async () => {
    // Request USB access inside the fenced frame. It should fail.
    try {
      await navigator.usb.requestDevice({ filters: [{ vendorId: 0}] });
      throw 'The USB request should not succeed.';
    } catch (e) {
      assert_equals(e.name, 'SecurityError');
      assert_equals(e.message,
        "Failed to execute 'requestDevice' on 'USB': " +
        'Access to the feature "usb" is disallowed by permissions policy.',
        'Fenced frame has the right error for usb.requestDevice.');
    }
  });
}, 'navigator.usb.requestDevice');
</script>
</body>