Bug 215159

Summary: [iOS] Transition problem in the same direction
Product: WebKit Reporter: shenshun <wengshenshun>
Component: AnimationsAssignee: Nobody <webkit-unassigned>
Status: RESOLVED DUPLICATE    
Severity: Normal CC: dino, graouts, jonlee, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Other   
Hardware: iPhone / iPad   
OS: Unspecified   
URL: https://codepen.io/wss534857356/pen/yLOLgQZ

Description shenshun 2020-08-05 00:04:25 PDT
In iOS14, translate movement in the same direction cannot be excessive after the transition attribute is modified.

You can check this demo: https://cdpn.io/wss534857356/debug/yLOLgQZ/xnkabZPBDDvM.

You can use the iOS14 to open this demo. When you click the next button twice, you will find that it cannot be overworked normally.
Comment 1 Radar WebKit Bug Importer 2020-08-06 12:04:38 PDT
<rdar://problem/66638568>
Comment 2 Jon Lee 2020-08-07 14:27:09 PDT
Is this a regression from a previous version of iOS?
Comment 3 Antoine Quint 2020-08-24 07:54:47 PDT
The original link does not work but I think this is the reported example:

https://codepen.io/wss534857356/pen/yLOLgQZ

This shows different behavior between iOS 13.6 and an iOS 14 beta. I can see the iOS 14 beta change in STP 112 but not a ToT Safari build, so this may be a regression that was addressed recently.
Comment 4 Antoine Quint 2020-08-24 08:13:25 PDT
Duplicate of bug 215655.

*** This bug has been marked as a duplicate of bug 215655 ***