Hi @endel, thanks for a quick reply. Yes, its working after I removed the CORS configuration and carefully followed the deployment logs.
Thanks again.

Hey all, hope you are having a great day.
I have recently tried hosting my Colyseus server on Colyseus arena, but unfortunately getting constant CORS error. Previously I was able to successfully host the same server on Heroku with the same CORS configurations.
This is the error I am getting :

This is the my arena.config.js :

Any help is appreciated.