the table wrapper box contains the table box itself and any caption boxes
<rdar://problem/53623803>
Created attachment 375032 [details] Patch
Created attachment 375118 [details] Patch
Comment on attachment 375118 [details] Patch Clearing flags on attachment: 375118 Committed r247931: <https://trac.webkit.org/changeset/247931>
All reviewed patches have been landed. Closing bug.