In Safari 9 + 10 (iOS and MacOS) the desired clipped area (within a pseudo element) is no longer clipped once either `height` or `transform: blur` is applied to the parent element. This does not happen in Safari 8 (when i think transform: blur was not implemented). Firefox, edge, ie11 + chrome all clip as expected. codepen demo: https://codepen.io/peter-mouland/pen/MEaEpK
<rdar://problem/34500907>