[Webkit-unassigned] [Bug 215571] New: WPE Webkit - WebGL content taking longer than expected to load compared to CEF

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215571

            Bug ID: 215571
           Summary: WPE Webkit - WebGL content taking longer than expected
                    to load compared to CEF
           Product: WebKit
           Version: WebKit Local Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: o.reynolds.mrg at gmail.com
                CC: dino at apple.com

ReactJS + WebGL pages take longer to fully load all geometry/assets in WPE Webkit (driven by cog) than they do in CEF (with ozone) and Firefox. 

Environment is Sway (Wayland).

WPE Webkit build is: 
libwpe 1.7.1
WPEBackend-fdo 1.7.1
cog 1.7.1
wpewebkit 2.29.90

Cef build is:  84.0.4147.125

Sample ReactJS + WebGL page to reproduce the loading times between the browsers:
https://forge-rcdb.autodesk.io/configurator?id=5a7185a92a0a7aeb152725d5

In CEF, the geometry loads within about 4 seconds.
In WPE Webkit, cog reports that the page has loaded, but it takes at least 10-15 seconds before all geometry of the project is visible.

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