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<rdar://problem/84474404>
Created attachment 441917 [details] Patch
Committed r284618 (243342@main): <https://commits.webkit.org/243342@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 441917 [details].
Reopening to attach new patch.
Created attachment 442051 [details] Cocoa-only patch
Reopened as the first patch enabled this feature on all platforms. Only Cocoa platforms are supported at this time.
Committed r284634 (243354@main): <https://commits.webkit.org/243354@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 442051 [details].