233084 2021-11-13 06:57:25 -0800 Scroll through content hidden with clip-path does not propagate below 2023-01-25 10:14:27 -0800 1 1 1 Unclassified WebKit UI Events Safari Technology Preview All All RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=214367 InRadar P2 Normal --- 1 augus.dupin simon.fraser augus.dupin graouts satoshionoda simon.fraser webkit-bug-importer zalan oldest_to_newest 1814746 0 444137 augus.dupin 2021-11-13 06:57:25 -0800 Created attachment 444137 testcase When clip-path is applied to an element, the content below the clipped part of the element cannot be scrolled, instead nothing happens. See the attachment. Scrolling below the purple square should trigger scroll underneath, but nothing happens. Note that other events (CSS hover and click) seem to work fine. 1815217 1 simon.fraser 2021-11-15 14:35:51 -0800 This might be bug 214367 1817114 2 webkit-bug-importer 2021-11-20 06:58:26 -0800 <rdar://problem/85634077> 1926856 3 augus.dupin 2023-01-20 03:30:05 -0800 Is there any update on this? This is a pretty bad bug and a substantial issue for me. 1927022 4 simon.fraser 2023-01-20 14:32:26 -0800 Pull request: https://github.com/WebKit/WebKit/pull/8896 1927381 5 satoshionoda 2023-01-22 20:39:20 -0800 @Bruno Stasse I've encountered exactly the same problem and found a strange solution. Adding a wheel event to the clipped element somehow solves this. https://codepen.io/satoshionoda/pen/yLqvXrW I suppose this is quite hacky but can be used until this bug is completely solved. 1927526 6 simon.fraser 2023-01-23 11:25:29 -0800 (In reply to Satoshi Onoda from comment #5) > @Bruno Stasse > > I've encountered exactly the same problem and found a strange solution. > Adding a wheel event to the clipped element somehow solves this. > > https://codepen.io/satoshionoda/pen/yLqvXrW > > I suppose this is quite hacky but can be used until this bug is completely > solved. That makes sense because wheel event handlers kick WebKit off of the fast path. 1927774 7 augus.dupin 2023-01-24 03:13:56 -0800 Ha that's quite interesting, thank you Satoshi Onoda! Unfortunately I need it to work on iOS, and there is no wheel events there so it doesn't work. If anyone has another workaround for iOS it would be very much welcome. 1928171 8 ews-feeder 2023-01-25 09:46:29 -0800 Committed 259368@main (96deabf28dd0): <https://commits.webkit.org/259368@main> Reviewed commits have been landed. Closing PR #8896 and removing active labels. 1928183 9 augus.dupin 2023-01-25 10:14:27 -0800 Thank you for the fix! 444137 2021-11-13 06:57:25 -0800 2021-11-13 06:57:25 -0800 testcase scroll-testcase.html text/html 1823 augus.dupin PCFET0NUWVBFIGh0bWw+CjxodG1sIGxhbmc9ImVuIj4KICAgIDxoZWFkPgogICAgICAgIDxtZXRh IGNoYXJzZXQ9IlVURi04IiAvPgogICAgICAgIDxtZXRhIGh0dHAtZXF1aXY9IlgtVUEtQ29tcGF0 aWJsZSIgY29udGVudD0iSUU9ZWRnZSIgLz4KICAgICAgICA8bWV0YSBuYW1lPSJ2aWV3cG9ydCIg Y29udGVudD0id2lkdGg9ZGV2aWNlLXdpZHRoLCBpbml0aWFsLXNjYWxlPTEuMCIgLz4KICAgICAg ICA8dGl0bGU+RG9jdW1lbnQ8L3RpdGxlPgogICAgICAgIDxzdHlsZT4KICAgICAgICAgICAgaHRt bCwKICAgICAgICAgICAgYm9keSB7CiAgICAgICAgICAgICAgICBtYXJnaW46IDA7CiAgICAgICAg ICAgICAgICBvdmVyZmxvdzogaGlkZGVuOwogICAgICAgICAgICAgICAgaGVpZ2h0OiAxMDAlOwog ICAgICAgICAgICB9CiAgICAgICAgICAgIC5iZWxvdy1zY3JvbGwgewogICAgICAgICAgICAgICAg aGVpZ2h0OiAxMDB2aDsKICAgICAgICAgICAgICAgIG92ZXJmbG93OiBhdXRvOwogICAgICAgICAg ICB9CiAgICAgICAgICAgIC5iZWxvdy1jb250ZW50IHsKICAgICAgICAgICAgICAgIGJhY2tncm91 bmQtY29sb3I6IHJlZDsKICAgICAgICAgICAgICAgIGhlaWdodDogMzAwdmg7CiAgICAgICAgICAg ICAgICBib3JkZXI6IDEwcHggc29saWQgeWVsbG93OwogICAgICAgICAgICB9CiAgICAgICAgICAg IC5iZWxvdy1jb250ZW50OmhvdmVyIHsKICAgICAgICAgICAgICAgIGJhY2tncm91bmQtY29sb3I6 IHBpbms7CiAgICAgICAgICAgIH0KICAgICAgICAgICAgLmFib3ZlLXNjcm9sbCB7CiAgICAgICAg ICAgICAgICBwb3NpdGlvbjogZml4ZWQ7CiAgICAgICAgICAgICAgICB0b3A6IDgwcHg7CiAgICAg ICAgICAgICAgICB3aWR0aDogMjAwcHg7CiAgICAgICAgICAgICAgICBoZWlnaHQ6IDQwMHB4Owog ICAgICAgICAgICAgICAgYm9yZGVyOiA1cHggc29saWQgZ3JlZW47CiAgICAgICAgICAgICAgICBv dmVyZmxvdzogYXV0bzsKICAgICAgICAgICAgICAgIGNsaXAtcGF0aDogaW5zZXQoMCAwIDIwMHB4 IDApOwogICAgICAgICAgICB9CiAgICAgICAgICAgIC5hYm92ZS1jb250ZW50IHsKICAgICAgICAg ICAgICAgIGJvcmRlcjogMTBweCBzb2xpZCBvcmFuZ2U7CiAgICAgICAgICAgICAgICBiYWNrZ3Jv dW5kLWNvbG9yOiBwdXJwbGU7CiAgICAgICAgICAgICAgICBoZWlnaHQ6IDEwMDBweDsKICAgICAg ICAgICAgfQogICAgICAgIDwvc3R5bGU+CiAgICA8L2hlYWQ+CiAgICA8Ym9keT4KICAgICAgICA8 ZGl2IGNsYXNzPSJiZWxvdy1zY3JvbGwiPgogICAgICAgICAgICA8ZGl2IGNsYXNzPSJiZWxvdy1j b250ZW50Ij4KICAgICAgICAgICAgICAgIFNjcm9sbCByaWdodCBiZWxvdyB0aGUgcHVycGxlIHNx dWFyZSwgaXQgc2hvdWxkIHNjcm9sbAogICAgICAgICAgICAgICAgdW5kZXJuZWF0aCwgYnV0IG5v dGhpbmcgaGFwcGVucy4gTm90ZSB0aGF0IG90aGVyIGV2ZW50cyAoQ1NTCiAgICAgICAgICAgICAg ICBob3ZlciBhbmQgY2xpY2spIHNlZW0gdG8gd29yayBmaW5lLgogICAgICAgICAgICA8L2Rpdj4K ICAgICAgICA8L2Rpdj4KICAgICAgICA8ZGl2IGNsYXNzPSJhYm92ZS1zY3JvbGwiPgogICAgICAg ICAgICA8ZGl2IGNsYXNzPSJhYm92ZS1jb250ZW50Ij48L2Rpdj4KICAgICAgICA8L2Rpdj4KICAg IDwvYm9keT4KICAgIDxzY3JpcHQ+CiAgICAgICAgZG9jdW1lbnQKICAgICAgICAgICAgLnF1ZXJ5 U2VsZWN0b3IoIi5iZWxvdy1jb250ZW50IikKICAgICAgICAgICAgLmFkZEV2ZW50TGlzdGVuZXIo ImNsaWNrIiwgKCkgPT4gYWxlcnQoImNsaWNrZWQiKSk7CiAgICA8L3NjcmlwdD4KPC9odG1sPgo=