[CSSStyleSheet-constructable-disallow-import.tentative.html]
  expected: ERROR
  [@import rules are not parsed in CSSStyleSheet.replaceSync]
    expected: FAIL

  [Inserting an @import rule through insertRule on a constructed stylesheet throws an exception]
    expected: FAIL

  [@import rules are not parsed in CSSStyleSheet.replace]
    expected: FAIL

  [@import rules should not trigger any loads.]
    expected: TIMEOUT