See discussions on https://github.com/w3c/webcomponents/issues/317 We should support fallback contents in slot elements.
Created attachment 262243 [details] Fixes the bug
This change is also required for the bug 149698.
Comment on attachment 262243 [details] Fixes the bug Thanks for the review!
Comment on attachment 262243 [details] Fixes the bug Clearing flags on attachment: 262243 Committed r190430: <http://trac.webkit.org/changeset/190430>
All reviewed patches have been landed. Closing bug.
<rdar://problem/24010799>