SSIA
Created attachment 171841 [details] Patch
Is this a recent regression? If so, I think you should mention that.
It was not working before for me either, but my former fix didn't solve it correctly apparently.
Comment on attachment 171841 [details] Patch Clearing flags on attachment: 171841 Committed r133170: <http://trac.webkit.org/changeset/133170>
All reviewed patches have been landed. Closing bug.