Fixed elements appear in the middle of full page screenshots taken when scrolled
Created attachment 373800 [details]
Created attachment 373801 [details]
Created attachment 373802 [details]
Comment on attachment 373802 [details]
Clearing flags on attachment: 373802
Committed r247291: <https://trac.webkit.org/changeset/247291>
All reviewed patches have been landed. Closing bug.