Bug 310597

Summary: view-timeline doesn't update values when the screen resizes
Product: WebKit Reporter: Jane Ori <janeori>
Component: CSSAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: ahmad.saleem792, koivisto, simon.fraser, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Mac (Apple Silicon)   
OS: macOS 26   

Jane Ori
Reported 2026-03-23 20:52:44 PDT
Works in chrome: https://codepen.io/propjockey/pen/ZYpazoP/d8312a32008a748a28a02385ef3e3f7e?editors=1100 the "before width" value should stay 20 when the view width changes additionally, the view timeline var "--right", used in the "before width" calculation cannot be used in a counter The calculations work initially and SOMETIMES flash with the correct value for one moment while resizing, before voiding back to 0. thank you
Attachments
Ahmad Saleem
Comment 1 2026-03-24 10:55:26 PDT
I am able to reproduce, while trying to resize on Safari, it starts to modify / update before width, while Chrome Canary does not.
Radar WebKit Bug Importer
Comment 2 2026-03-24 10:55:34 PDT
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