fix: explicit 127.0.0.1 proxy and trust IPv6 loopback in Gotify

Author: webees

Dockerfile

@@ -17,7 +17,7 @@ ENV WORKDIR=/app \
     # Gotify settings
     GOTIFY_SERVER_PORT=8080 \
     # Trust Caddy proxy (localhost) to correctly parse X-Forwarded-For
-    GOTIFY_SERVER_TRUSTEDPROXIES='["127.0.0.1"]'
+    GOTIFY_SERVER_TRUSTEDPROXIES='["127.0.0.1", "::1"]'
 
 WORKDIR $WORKDIR
 

config/Caddyfile

@@ -61,7 +61,7 @@
 		}
 
 		# Proxy to the application backend
-		reverse_proxy localhost:8080 {
+		reverse_proxy 127.0.0.1:8080 {
 			header_up X-Real-IP {http.request.header.CF-Connecting-IP:{http.request.header.Fly-Client-IP:{remote_host}}}
 			header_up X-Forwarded-For {http.request.header.CF-Connecting-IP:{http.request.header.Fly-Client-IP:{remote_host}}}
 		}