[case.html]
  type: testharness
  [getElementsByTagName a:abc]
    expected: FAIL

  [getElementsByTagName a:Abc]
    expected: FAIL

  [getElementsByTagName a:ABC]
    expected: FAIL

  [getElementsByTagName a:\xc3\xa4]
    expected: FAIL

  [getElementsByTagName a:\xc3\x84]
    expected: FAIL

