Thank you @fredsmith . According to Caddy Websocket Configuration - #2 by marcofirsching , nothing specific to WS should be required in the Caddyfile, but here it does not work without the lines you provided.
Thank you @fredsmith . According to Caddy Websocket Configuration - #2 by marcofirsching , nothing specific to WS should be required in the Caddyfile, but here it does not work without the lines you provided.