[usermedia-validation-errors.tentative.https.html]
  [A usermedia element with missing constraints for dual devices triggers onerror with NotSupportedError]
    expected: FAIL

  [A usermedia element with missing audio constraints for microphone type triggers onerror with NotSupportedError]
    expected: FAIL

  [A usermedia element with missing video constraints for camera type triggers onerror with NotSupportedError]
    expected: FAIL