[Webkit-unassigned] [Bug 272511] New: WebGL Context Lost in STP 192

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=272511

            Bug ID: 272511
           Summary: WebGL Context Lost in STP 192
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Mac (Apple Silicon)
                OS: macOS 14
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: heystoneybatter at gmail.com
                CC: dino at apple.com, kbr at google.com, kkinnunen at apple.com

Hi there,

Release 192 of Safari Technology Preview breaks most WebGL-based pages I have come across. Checking the error log of a few, I see "WebGL: context lost" at the top of the log followed by a number of resulting errors. Two examples would be:

https://evanw.github.io/glfx.js/
This page is for the WebGL library GLFX.js and it has worked perfectly in Safari for years and years. It is broken in 192 and works fine in normal Safari across devices (Mac, iPhone (17.5), iPad, etc) 

https://www.figma.com
Figma's homepage uses WebGL extensively and also has the same issue where context is lost and the WebGL parts of the page break. It has no WebGL errors in current Safari.

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