Bug 232481

Summary: https://twitter.com/webkit/ takes 100% CPU for a while
Product: WebKit Reporter: Anthony Ricaud <rik>
Component: New BugsAssignee: Sergio Villar Senin <svillar>
Status: RESOLVED FIXED    
Severity: Normal CC: koivisto, rego, svillar, webkit-bug-importer, ysuzuki, zalan
Priority: P2 Keywords: InRadar
Version: Safari Technology Preview   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 225590, 221479, 230755    

Anthony Ricaud
Reported 2021-10-29 05:10:30 PDT
See https://twitter.com/lapcatsoftware/status/1453469143479504913. Jeff Johnson reports this issue on macOS 11.6.1. I'm also seeing this issue on macOS 12.0.1.
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Radar WebKit Bug Importer
Comment 1 2021-10-29 12:27:43 PDT
<rdar://problem/84819606>
Yusuke Suzuki
Comment 2 2021-10-29 12:36:11 PDT
This looks like flexbox layout issue. https://twitter.com/lapcatsoftware/status/1453470082517147648
Yusuke Suzuki
Comment 3 2021-10-29 13:07:27 PDT
Caused by r284359.
Yusuke Suzuki
Comment 4 2021-10-29 13:20:57 PDT
Reverted three changes in https://trac.webkit.org/changeset/285045/webkit
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