[getallresponseheaders.htm]
  type: testharness
  [XMLHttpRequest: getAllResponseHeaders()]
    expected: FAIL

  [XMLHttpRequest: getAllResponseHeaders() 1]
    expected: FAIL

  [XMLHttpRequest: getAllResponseHeaders() 2]
    expected: FAIL

  [XMLHttpRequest: getAllResponseHeaders() 3]
    expected: FAIL

  [XMLHttpRequest: getAllResponseHeaders() 6]
    expected: FAIL

  [XMLHttpRequest: getAllResponseHeaders() 4]
    expected: FAIL

  [XMLHttpRequest: getAllResponseHeaders() 5]
    expected: FAIL