[selectedcontent-attribute-change.html]
  [Reducing a select's size to 1 updates selectedcontent.]
    expected: FAIL

  [Removing a select's multiple attribute updates selectedcontent.]
    expected: FAIL

  [Removing an option's disabled attribute updates selectedcontent.]
    expected: FAIL

  [Removing an optgroup's disabled attribute updates selectedcontent.]
    expected: FAIL

  [Removing a select's multiple attribute updates selectedcontent when selectedness does not change.]
    expected: FAIL