When s2sl was being worked on, we used os.js which used websockets, I’ll see if I can find out a reason why websockets didn’t work
looks like there hasn’t been a solution for it yet, if you use cloudflare you might have issues with websockets
I’m actually confused cloudflare says it should work
https://support.cloudflare.com/hc/en-us/articles/200169466-Using-Cloudflare-with-WebSockets#12345680
maybe the fly.io proxy doesn’t work with websockets?