WebGL exception debugging

Hi,

I am using Unity 2020.4.30f1.

When I compile the game I am working on, in anything else (EDITOR, iOS, Android, etc.), but WebGL, everything works fine.

When I start the game in the browser (Chrome, Firefox - doesn't matter), WebGL throws an exception (visible in the browser's dev tools console), but I see no values of the offending stack frame's variables, and there are also no line #s (just zeros) in the stack to guide me more specifically.

I tried using:

https://www.khronos.org/webgl/wiki/Debugging

, but it doesn't seem to work.

When I try to compile WebGL with the "Development Build" option checked, I get the following somewhere in the middle of building, and the compilation fails.

Code (CSharp):

1. Failed running "C:\Program Files\Unity\Hub\Editor\2018.4.30f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten_Win\python\2.7.5.3_64bit\python.exe" "C:\Program Files\Unity\Hub\Editor\2018.4.30f1\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emcc" @"C:\source\GameName\unity_project\Assets\..\Temp\emcc_arguments.resp"