NEW261585
Support multiple backing sharing providers when scrollers are nested 
https://bugs.webkit.org/show_bug.cgi?id=261585
Summary Support multiple backing sharing providers when scrollers are nested
Simon Fraser (smfr)
Reported 2023-09-14 18:45:06 PDT
Bug 261302 is limiting compositing backing sharing (RenderLayerCompositor::BackingSharingState) to non-overlapping, sibling overflow scrollers, but it would also be good to support nested scrollers too.
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Radar WebKit Bug Importer
Comment 1 2023-09-21 18:46:13 PDT
<rdar://problem/115871837>
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