Now it is enabled on IOS and GTK, but not on EFL. There is no reason to disable it on EFL, I tested and it works fine. So let's enable it everywhere.
Created attachment 241022 [details] Patch
Comment on attachment 241022 [details] Patch Clearing flags on attachment: 241022 Committed r175624: <http://trac.webkit.org/changeset/175624>
All reviewed patches have been landed. Closing bug.