RESOLVED DUPLICATE of bug 245465 246498
Canvas strokeStyle does not always get applied 
https://bugs.webkit.org/show_bug.cgi?id=246498
Summary Canvas strokeStyle does not always get applied
Jon Woyame
Reported 2022-10-13 18:31:53 PDT
Safari's <canvas> has fairly recently acquired a regression where `strokeStyle` is not getting applied properly. As stroke() is called iteratively, it sometimes uses older color values, despite `strokeStyle` being changed prior to the call. This has been documented with a code snippet on Stack Overflow: https://stackoverflow.com/questions/74050672/html5-canvas-context-does-not-update-in-safari It is also observed in a similar example by @Kaiido: https://jsfiddle.net/7awL4fg3/ This has been tested on a MacBook Pro with Apple Silicon, and several iPhones. It is present in Safari 16 and Safari Technology Preview.
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Alexey Proskuryakov
Comment 1 2022-10-16 18:59:56 PDT
Sounds like bug 245465 (please see its dupes for details). Please verify with a future Safari Technology Preview, once release notes say that it's beyond 254889@main. *** This bug has been marked as a duplicate of bug 245465 ***
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