prefs: [layout.css.contain.enabled:true, layout.css.initial-letter.enabled:true, layout.css.overflow-clip-box.enabled:true, layout.css.shape-outside.enabled:true]
[interpolation-per-property.html]
  type: testharness
  [filterList has testInterpolation function]
    expected: FAIL

  [filter (type: filterList) has testInterpolation function]
    expected: FAIL

