[preventScroll.html]
  [Sanity test]
    expected: FAIL

  [elm.focus() without arguments]
    expected: FAIL

  [elm.focus(undefined)]
    expected: FAIL

  [elm.focus(null)]
    expected: FAIL

  [elm.focus({})]
    expected: FAIL

  [elm.focus({preventScroll: false})]
    expected: FAIL