[setrequestheader-header-allowed.htm]
  type: testharness
  [XMLHttpRequest: setRequestHeader() - headers that are allowed (Authorization)]
    expected: FAIL

  [XMLHttpRequest: setRequestHeader() - headers that are allowed (Content-Transfer-Encoding)]
    expected: FAIL

  [XMLHttpRequest: setRequestHeader() - headers that are allowed (Content-Type)]
    expected: FAIL

  [XMLHttpRequest: setRequestHeader() - headers that are allowed (User-Agent)]
    expected: FAIL