In some cases we might be adding TargetIsMainFrame to a subframe request causing an isMainFrame assert.
Created attachment 202512 [details] Patch
Comment on attachment 202512 [details] Patch Looks good.
Comment on attachment 202512 [details] Patch Clearing flags on attachment: 202512 Committed r150766: <http://trac.webkit.org/changeset/150766>
All reviewed patches have been landed. Closing bug.