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Created attachment 304540 [details] Patch
Created attachment 304541 [details] [Image] After Patch is applied
Comment on attachment 304540 [details] Patch r=me, 😆 I'm suspicious that this would work for frames because of hit testing, but it seems fine for canvas-like graphs that are not interactive.
Comment on attachment 304540 [details] Patch Clearing flags on attachment: 304540 Committed r214009: <http://trac.webkit.org/changeset/214009>
All reviewed patches have been landed. Closing bug.