We need a follow-up patch to https://bugs.webkit.org/show_bug.cgi?id=212114, adding an off-by-default setting for per-page storage access scope and a test case.
<rdar://problem/63904824>
Created attachment 400886 [details] Patch
Comment on attachment 400886 [details] Patch r=me
Comment on attachment 400886 [details] Patch Thanks, Brent!
Committed r262495: <https://trac.webkit.org/changeset/262495> All reviewed patches have been landed. Closing bug and clearing flags on attachment 400886 [details].