See bug 211351 and the referenced CSSWG issue.
Created attachment 398323 [details] Patch
Created attachment 398329 [details] Patch
Created attachment 398331 [details] Patch
Committed r261074: <https://trac.webkit.org/changeset/261074> All reviewed patches have been landed. Closing bug and clearing flags on attachment 398331 [details].
<rdar://problem/62834090>
Soooo, sounds like this patch should be reverted, because bug 211351 is sorted out? (Or the flag should be flipped to on-by-default?)
(In reply to Myles C. Maxfield from comment #6) > Soooo, sounds like this patch should be reverted, because bug 211351 is > sorted out? (Or the flag should be flipped to on-by-default?) It was done in October: https://bugs.webkit.org/show_bug.cgi?id=246522