Created attachment 203051 [details] screenshot when changing border size of cells in a table that has border-collapse:collapse; (with javascript or hover) the extra lines are not redrawing.. see attached test
Created attachment 203053 [details] screenshot extreme example
Created attachment 203054 [details] test case hover over multiple cells to see the effect.
Created attachment 437568 [details] table-row border test case The original test case used border on the table cells and is no longer reproducible for me in STP Release 131 (Safari 15.0, WebKit 17612.2.2). However, I am able to reproduce the issue by moving the hover border style to the table-row. New test case for table-row border is attached.
<rdar://problem/82844412>
Created attachment 437828 [details] Patch
Created attachment 437834 [details] Patch
Committed r282266 (241544@main): <https://commits.webkit.org/241544@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 437834 [details].
Created attachment 437876 [details] [fast-cq]Rebaseline patch
Rebaselining
Committed r282271 (241549@main): <https://commits.webkit.org/241549@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 437876 [details].