i have no idea with this ERR_CONNECTION_REFUSE error while deploying openvidu session. openvidu was deployed with docker, HTTP was 8080 and HTTPS was 4443. what can i do for this error?

The SSL certificate will fail if the connection is not done through 443. If you access https://i6c205.u.ssafy.io:4443/ you will probably see an SSL certificate warning.
Two things:

  • I can see your app is trying to consume OpenVidu REST API from the client side. That is not good practice, as anyone could stole your secret. You should consume it from the server side.
  • Not using 443 port can throw this kind of SSL errors.