It doesn't seem to be needed on yahoo.com anymore, but other sites do need it.
Created attachment 289967 [details]
Comment on attachment 289967 [details]
You should also update the unit tests.
I'm struggling to find the test for this.
Committed r206515: <http://trac.webkit.org/changeset/206515>
Committed r206516: <http://trac.webkit.org/changeset/206516>