[font-weight-composition.html]
  [Compositing Web Animations: property <font-weight> underlying [200\] from add [600\] to replace [500\] at (-0.3) should be [889.75\]]
    expected: FAIL

  [Compositing CSS Animations: property <font-weight> underlying [200\] from add [600\] to replace [500\] at (-0.3) should be [889.75\]]
    expected: FAIL