[window_length.html]
  type: testharness
  [No child browsing contexts]
    expected: FAIL

  [iframe not inserted into the document]
    expected: FAIL

  [One iframe inserted into the document]
    expected: FAIL

  [Child browsing context has a child browsing context]
    expected: FAIL

  [window.length in child frame]
    expected: FAIL

  [Opened window]
    expected: FAIL

  [Iframe in opened window]
    expected: FAIL