Well, it is much easier than I thought. If you know Apache, that is.
I tried to use the Live Server Plugin from Visual Code first, but that has no gzip module, so it can not be used for compressed builds. Meaning : You always would have to compile twice, and that I find stupid.
So I installed the Windows Apache Binaries from here for example, which have libz and even the Brokoli ? compression modules enabled by default.
„Running Unity3D WebGL with a local Apache Server“ weiterlesen