Thank you. Im also running several docker containers in the same machine, but perhaps as Im using Nginx it doesnt let me access without the token. Not sure why, but didn’t work without it.
Another issue is that your automaton triggers again when the player goes to idle. I guess it works on Chromecast, any suggestion for other players? I use Bose Soundtouch and the state remains playing after the song is finished. So no re-triggering.