[Webkit-unassigned] [Bug 249125] New: WebGL not availalbe

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249125

            Bug ID: 249125
           Summary: WebGL not availalbe
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: kdwkleung at protonmail.com
                CC: bugs-noreply at webkitgtk.org

Created attachment 464003

  --> https://bugs.webkit.org/attachment.cgi?id=464003&action=review

Screenshot showing the Aquarium WebGL test not working

Starting from WebKitGTK 2.91.1 on Epiphany Technology Preview (GTK 4), websites can no longer use WebGL on any of my devices. For instance, the Aquarium WebGL test reports that my device does not appear to support WebGL. WebGL works on WebKitGTK 2.38.1 on Gnome Web stable (GTK 3).

Note: other users, like Alexander Mikhaylenko, reported that WebGL works on their device.

Note: not sure if related: when visiting sites like apple.com and reddit.com, the terminal outputs a few lines of `ERR: Display.cpp:1021 (initialize): ANGLE Display::initialize error 12289: Failed to initialize system egl`. Animations and position snapping on apple.com doesn't work (they did in stable). Scrolling on reddit.com is very sluggish (the problem is less pronounced in stable).

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