Pseudo elements on elements that don't disallow renderers outside CSS mechanisms (like <noscript>) hit asserts.
<rdar://problem/36334524>
Created attachment 331612 [details] patch
Comment on attachment 331612 [details] patch r=me
Comment on attachment 331612 [details] patch Clearing flags on attachment: 331612 Committed r227145: <https://trac.webkit.org/changeset/227145>
All reviewed patches have been landed. Closing bug.