[storage_setitem.window.html]
  [localStorage[\] = "U+d800"]
    expected: FAIL

  [localStorage[\] = "U+dbff"]
    expected: FAIL

  [localStorage[\] = "U+dc00"]
    expected: FAIL

  [localStorage[\] = "U+dfff"]
    expected: FAIL

  [localStorage[\] = "U+d83ca"]
    expected: FAIL

  [localStorage[\] = "aU+df4d"]
    expected: FAIL

  [sessionStorage[\] = "U+d800"]
    expected: FAIL

  [sessionStorage[\] = "U+dbff"]
    expected: FAIL

  [sessionStorage[\] = "U+dc00"]
    expected: FAIL

  [sessionStorage[\] = "U+dfff"]
    expected: FAIL

  [sessionStorage[\] = "U+d83ca"]
    expected: FAIL

  [sessionStorage[\] = "aU+df4d"]
    expected: FAIL