Though we have proceeded supporting ShadowDOM for replaced elements, we have concluded that we don't implement the current spec for now, since it has a lot of difficulties to make it understandable. So we would like to reject adding an AuthroShadowRoot to those elements now. After we reached another conclusion, we will come back to support AuthorShadowDOM for replaced elements.
img, input, textarea, iframe, canvas, meter, progress, select, object, embed, keygen, video, audio, fieldset I think <button> is OK if AuthorShadowRoot is allowed now.
Not that supporting AuthorShadowRoot in some of replaced elements is disabled in https://bugs.webkit.org/show_bug.cgi?id=96404
Created attachment 164495 [details] Patch
Comment on attachment 164495 [details] Patch Good catch!
Comment on attachment 164495 [details] Patch Clearing flags on attachment: 164495 Committed r128856: <http://trac.webkit.org/changeset/128856>
All reviewed patches have been landed. Closing bug.
*** Bug 95711 has been marked as a duplicate of this bug. ***