Blazor GL is missing in .NET 7

[mattleibow]

    @mattleibow just a heads up... that Blazor skiasharp views are broken under dotnet 7.

https://github.com/mono/SkiaSharp/blob/main/source/SkiaSharp.Views.Blazor/SkiaSharp.Views.Blazor/wwwroot/SKHtmlCanvas.ts#L114

This GL symbol is not in scope.

Dont quote me on this, but my conclusion from spending a day investigating is:

net 6, ES6 modules are not used: GL is a global variable.

net7 dotnet.js is using ES6 modules, and GL is now private and isnt exported.

something generates the js code for the GL stuff and stuffs it in (dotnet.js). I am unable to determine the thing that generates this source thus far.

for now ill continue to find a workaround, but maybe you know something ?

dotnet/runtime#76077

Originally posted by @danwalmsley in #2254 (comment)

[pavelsavara]

net 6, ES6 modules are not used: GL is a global variable.

correct, in net6 GL is a global variable because it's not modularized. It's there only when GL is included by emscripten.
I don't know how skiaSharp configures the emscripten in net6.

something generates the js code for the GL stuff and stuffs it in (dotnet.js).

That something is emscripten linker, when you pass for example -s LEGACY_GL_EMULATION=1 -lGL -lSDL to it
Or other WebGL modules.
https://emscripten.org/docs/porting/multimedia_and_graphics/OpenGL-support.html

net7 dotnet.js is using ES6 modules, and GL is now private and isnt exported.

Correct. Again, if emscripten includes the GL module, it's still inside ES6 dotnet.js not on globalThis.
It's also not on Module object. To put it there you need to configure emscripten EXPORTED_RUNTIME_METHODS