Problems with WebGl build on Unity 2022.1

[doterax]

After we added this library to the project we started facing WebGl build problem:

Library\Bee\artifacts\WebGL\build\debug_WebGL_wasm\build.js: undefined symbol: sendfile (referenced by top-level compiled C/C++ code)
UnityEditor.BuildPipeline:BuildPlayer (UnityEditor.BuildPlayerOptions)

After some investigation I found solution. I just removed SocketExtensions.cs from the compillation (we don't use it). And recompiled UnityFx.Async and it helps.

And I think all .Net extensions in UnityFx.Async should be extracted to a different project (dll) so user can use only needed stuff.