Here goes nothing... I sat down and took the first HTTP proxy which seemed easy enough to customize and built working versions for both the original Haxball Window as well as salamini's HaxWin 1.0, here are the downloads:
Haxball Window with proxyHaxWin with proxyInstructions (every time you run it):
- Run the proxy.bat in the main directory (don't close the CMD window which appears)
- Start Haxball Window / HaxWin as usual
Starting the application is slow as fuck (and no, there are no strange sounds, you're hearing things), and loading the room list / joining rooms is slower as well, but it at least works again. Gameplay itself is not affected by the proxy, so it should be smooth as usual.
Only use these if you really can't play with new HaxWin 1.1.
If anyone with (more) windows programming experience has a cleaner/faster/more integrated solution in mind, feel free to talk to me, this is just a first attempt, a proof of concept that it can be solved using a simple HTTP proxy. salamini is working on a much better way to make HaxWin 1.0 work without a proxy again, but for the original Haxball Window we will probably be stuck with a solution similar to this.