Shadow DOM spec is updated: http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#event-dispatch Section 5.5. > The MouseEvent offsetX and offsetY attributes must return the coordinates relative to the origin of the padding edge of the relative target We should implement this behavior.
Created attachment 181818 [details] Add a test
I've filed a bug for the spec about when MouseEvent offsetX and offsetX should be calculated. https://www.w3.org/Bugs/Public/show_bug.cgi?id=20615 Anyway, this patch itself is innocent and safe to land, I think.
Comment on attachment 181818 [details] Add a test Clearing flags on attachment: 181818 Committed r139153: <http://trac.webkit.org/changeset/139153>
All reviewed patches have been landed. Closing bug.