229442 2021-08-24 07:41:13 -0700 sticky thead and th causes incorrect positioning 2021-09-23 03:36:47 -0700 1 1 1 Unclassified WebKit Scrolling Safari 14 Mac (Apple Silicon) macOS 11 RESOLVED WORKSFORME InRadar P2 Normal --- 1 shun simon.fraser bfulgham mrobinson simon.fraser webkit-bug-importer zalan oldest_to_newest 1786736 0 436286 shun 2021-08-24 07:41:13 -0700 Created attachment 436286 reproduce # Overview Scrolling the table with sticky th inside sticky thead inside a overflow:auto div, th cell moves opposite to scroll direction, while it is expected to be stopped. # Steps to reproduce see attachment # Actual Results th cell moves down. # Expected Results th cell stops at the top. --- sorry I'm new to here:) 1786850 1 simon.fraser 2021-08-24 11:35:07 -0700 Thank you for the test case. 1786851 2 webkit-bug-importer 2021-08-24 11:35:23 -0700 <rdar://problem/82301908> 1796441 3 mrobinson 2021-09-23 03:36:47 -0700 Is this still an issue? I'm not seeing it with Safari 15. It's possible this has been fixed by recent position:sticky improvements, so I'll close this. Feel free to comment if this is still a problem though. 436286 2021-08-24 07:41:13 -0700 2021-08-24 07:41:13 -0700 reproduce example.html text/html 1752 shun PGh0bWw+CjxoZWFkPgogIDxtZXRhIGNoYXJzZXQ9InV0Zi04Ij4KICA8c3R5bGU+CiAgICAjcm9v dCB7CiAgICAgIGhlaWdodDogMTUwcHg7CiAgICAgIG92ZXJmbG93OiBhdXRvOwogICAgfQogICAg I3Jvb3QgdGhlYWQgewogICAgICBwb3NpdGlvbjogc3RpY2t5OwogICAgICB0b3A6IDA7CiAgICB9 CiAgICAjcm9vdCB0aGVhZCB0aDpmaXJzdC1jaGlsZCB7CiAgICAgIHBvc2l0aW9uOiBzdGlja3k7 CiAgICAgIHRvcDogMDsKICAgICAgbGVmdDogMDsKICAgIH0KICA8L3N0eWxlPgo8L2hlYWQ+Cjxi b2R5PgogIDxkaXYgaWQ9InJvb3QiPgogICAgPHRhYmxlPgogICAgICA8dGhlYWQ+CiAgICAgICAg PHRyPgogICAgICAgIDx0aD5Sb290Q2VsbDwvdGg+CiAgICAgICAgPHRoPkNvbHVtbjwvdGg+CiAg ICAgICAgPC90cj4KICAgICAgPC90aGVhZD4KICAgICAgPHRib2R5PgogICAgICAgIDx0cj48dGg+ Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRk PkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48 L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAg IDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8u MTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFw cGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3Ry PgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0 cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwv dGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxl PC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgog ICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48 dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+ PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90 ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAg ICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+ Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRk PkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48 L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAg IDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8u MTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFw cGxlPC90ZD48L3RyPgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3Ry PgogICAgICAgIDx0cj48dGg+Tm8uMTwvdGg+PHRkPkFwcGxlPC90ZD48L3RyPgogICAgICA8L3Ri b2R5PgogICAgPC90YWJsZT4KICA8L2Rpdj4KPC9ib2R5Pgo8L2h0bWw+