Bug 274405

Summary: [view-transitions] 1px shift with animation on https://12daysofweb.dev/2023/view-transitions/
Product: WebKit Reporter: Tim Nguyen (:ntim) <ntim>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
URL: https://12daysofweb.dev/2023/view-transitions/
Bug Depends on:    
Bug Blocks: 259055    
Attachments:
Description Flags
Screen recording
none
Testcase reduction none

Description Tim Nguyen (:ntim) 2024-05-20 11:16:38 PDT
Created attachment 471449 [details]
Screen recording

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Comment 1 Radar WebKit Bug Importer 2024-05-20 11:17:21 PDT
<rdar://problem/128407498>
Comment 2 Tim Nguyen (:ntim) 2024-05-22 19:56:32 PDT
Created attachment 471478 [details]
Testcase reduction

Looks like anything inside an iframe that has `style="width: 403.4px; border: 1px solid red; float: right"` will reproduce this issue.