[idlharness.html]
  [CSSPositionTryRule interface: existence and properties of interface object]
    expected: FAIL

  [CSSPositionTryRule interface object length]
    expected: FAIL

  [CSSPositionTryRule interface object name]
    expected: FAIL

  [CSSPositionTryRule interface: existence and properties of interface prototype object]
    expected: FAIL

  [CSSPositionTryRule interface: existence and properties of interface prototype object's "constructor" property]
    expected: FAIL

  [CSSPositionTryRule interface: existence and properties of interface prototype object's @@unscopables property]
    expected: FAIL

  [CSSPositionTryRule interface: attribute name]
    expected: FAIL

  [CSSPositionTryRule interface: attribute style]
    expected: FAIL