fix(postiz): use localhost instead of docker hostname for backend_internal_url

the internal nginx in postiz container requires localhost, not the docker
service name, as this url is used for proxying within the container itself.

.env.example

@@ -430,11 +430,13 @@ GOST_PROXY_URL=
 
 # External upstream proxy (REQUIRED - asked during wizard if gost is selected)
 # Examples: socks5://user:pass@proxy.com:1080, http://user:pass@proxy.com:8080
+# IMPORTANT: For HTTP proxies use http://, NOT https://
+# The protocol refers to proxy type, not connection security.
 GOST_UPSTREAM_PROXY=
 
 # Internal services bypass list (prevents internal Docker traffic from going through proxy)
 # Includes: Docker internal networks (172.16-31.*, 10.*), Docker DNS (127.0.0.11), and all service hostnames
-GOST_NO_PROXY=localhost,127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,.local,postgres,postgres:5432,redis,redis:6379,caddy,ollama,neo4j,qdrant,weaviate,clickhouse,minio,searxng,crawl4ai,gotenberg,langfuse-web,langfuse-worker,flowise,n8n,n8n-import,n8n-worker-1,n8n-worker-2,n8n-worker-3,n8n-worker-4,n8n-worker-5,n8n-worker-6,n8n-worker-7,n8n-worker-8,n8n-worker-9,n8n-worker-10,n8n-runner-1,n8n-runner-2,n8n-runner-3,n8n-runner-4,n8n-runner-5,n8n-runner-6,n8n-runner-7,n8n-runner-8,n8n-runner-9,n8n-runner-10,letta,lightrag,docling,postiz,temporal,temporal-ui,ragflow,ragflow-mysql,ragflow-minio,ragflow-redis,ragflow-elasticsearch,ragapp,open-webui,comfyui,waha,libretranslate,paddleocr,nocodb,db,studio,kong,auth,rest,realtime,storage,imgproxy,meta,functions,analytics,vector,supavisor,gost
+GOST_NO_PROXY=localhost,127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,.local,postgres,postgres:5432,redis,redis:6379,caddy,ollama,neo4j,qdrant,weaviate,clickhouse,minio,searxng,crawl4ai,gotenberg,langfuse-web,langfuse-worker,flowise,n8n,n8n-import,n8n-worker-1,n8n-worker-2,n8n-worker-3,n8n-worker-4,n8n-worker-5,n8n-worker-6,n8n-worker-7,n8n-worker-8,n8n-worker-9,n8n-worker-10,n8n-runner-1,n8n-runner-2,n8n-runner-3,n8n-runner-4,n8n-runner-5,n8n-runner-6,n8n-runner-7,n8n-runner-8,n8n-runner-9,n8n-runner-10,letta,lightrag,docling,postiz,temporal,temporal-ui,ragflow,ragflow-mysql,ragflow-minio,ragflow-redis,ragflow-elasticsearch,ragapp,open-webui,comfyui,waha,libretranslate,paddleocr,nocodb,db,studio,kong,auth,rest,realtime,storage,imgproxy,meta,functions,analytics,vector,supavisor,gost,api.telegram.org,telegram.org,t.me,core.telegram.org
 
 ############
 # Functions - Configuration for Functions

CHANGELOG.md

@@ -2,6 +2,16 @@
 
 ## [Unreleased]
 
+## [1.2.4] - 2026-01-30
+
+### Fixed
+- **Postiz** - Fix `BACKEND_INTERNAL_URL` to use `localhost` instead of Docker hostname (internal nginx requires localhost)
+
+## [1.2.3] - 2026-01-29
+
+### Fixed
+- **Gost proxy** - Add Telegram domains to `GOST_NO_PROXY` bypass list for n8n Telegram triggers
+
 ## [1.2.2] - 2026-01-26
 
 ### Fixed

docker-compose.yml

@@ -836,7 +836,7 @@ services:
     restart: always
     environment:
       <<: *proxy-env
-      BACKEND_INTERNAL_URL: http://postiz:3000
+      BACKEND_INTERNAL_URL: http://localhost:3000
       DATABASE_URL: "postgresql://postgres:${POSTGRES_PASSWORD}@postgres:5432/${POSTIZ_DB_NAME:-postiz}?schema=postiz"
       DISABLE_REGISTRATION: ${POSTIZ_DISABLE_REGISTRATION}
       FRONTEND_URL: ${POSTIZ_HOSTNAME:+https://}${POSTIZ_HOSTNAME}

scripts/04_wizard.sh

@@ -215,7 +215,7 @@ if [ $gost_selected -eq 1 ]; then
     EXISTING_UPSTREAM=$(read_env_var "GOST_UPSTREAM_PROXY")
 
     GOST_UPSTREAM_INPUT=$(wt_input "Gost Upstream Proxy" \
-        "Enter your external proxy URL for geo-bypass.\n\nExamples:\n  socks5://user:pass@proxy.com:1080\n  http://user:pass@proxy.com:8080\n\nThis proxy should be located outside restricted regions." \
+        "Enter your external proxy URL for geo-bypass.\n\nExamples:\n  socks5://user:pass@proxy.com:1080\n  http://user:pass@proxy.com:8080\n\nIMPORTANT: For HTTP proxies use http://, NOT https://.\nThe protocol refers to proxy type, not connection security.\n\nThis proxy should be located outside restricted regions." \
         "$EXISTING_UPSTREAM") || true
 
     if [ -n "$GOST_UPSTREAM_INPUT" ]; then