I’ve set up n8n on a Hetzner VPS using a community installer script. During the installation it asked me for the webhook URL, and I just went with the default: n8n.domain.com/webhook.
Everything works fine in general, but I noticed that the webhook and form URLs inside the nodes are being generated incorrectly. For example:
The thing is, the working URLs don’t actually have the extra /webhook. If I manually remove /webhook from the link, it works.
That’s already a bit annoying, but the bigger issue is with the Form Ending node: when the form is submitted, instead of showing the final message, the submit button just keeps spinning in a loop. My guess is that the backend is trying to hit the wrong URL (with /webhook in it) and that’s why it breaks.
I assume this might just be a single config issue (maybe something in Portainer or the docker-compose.yml), but I don’t want to blindly mess around and break other stuff.
Thanks a lot!
n8n version: last Database (default: SQLite): postgree n8n EXECUTIONS_PROCESS setting (default: own, main): Running n8n via (Docker, npm, n8n cloud, desktop app): VPS/Docker Operating system: Debian Linux
Hey @leocamargo hope all is good. Welcome to the community.
Would you like to share a screenshot of the webhook with an extra /webhook, as well as your docker-compose.yml content?
Without looking at the config, the most probable cause would be if you have WEBHOOK_URL configured with /webhook at the end.
Hey, thanks for the quick reply!
Yeah, I actually found the WEBHOOK_URL variable in Portainer and I was already suspicious about it, but I wasn’t 100% sure if I could safely change it without messing up other configs.
As you suggested, here are the screenshots showing the webhook URL issue, plus the content of my docker-compose.yml below.
Webhooks:
Forms:
docker-compose.yml:
version: "3.7"
services:
## --------------------------- ORION --------------------------- ##
n8n_editor:
image: n8nio/n8n:latest
command: start
networks:
- rede
environment:
- N8N_FIX_MIGRATIONS=true
- DB_TYPE=postgresdb
- DB_POSTGRESDB_DATABASE=n8n_queue
- DB_POSTGRESDB_HOST=postgres
- DB_POSTGRESDB_PORT=5432
- DB_POSTGRESDB_USER=postgres
- DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD}
- N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
- N8N_HOST=n8n.mydomain.com
- N8N_EDITOR_BASE_URL=https://n8n.mydomain.com/
- WEBHOOK_URL=https://n8n.mydomain.com/webhook/
- N8N_PROTOCOL=https
- N8N_ONBOARDING_FLOW_DISABLED=true
- NODE_ENV=production
- EXECUTIONS_MODE=queue
- EXECUTIONS_TIMEOUT=3600
- EXECUTIONS_TIMEOUT_MAX=7200
- OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=true
- N8N_RUNNERS_ENABLED=true
- N8N_RUNNERS_MODE=internal
- N8N_RUNNERS_MAX_CONCURRENCY=5
- N8N_REINSTALL_MISSING_PACKAGES=true
- N8N_COMMUNITY_PACKAGES_ENABLED=true
- N8N_NODE_PATH=/home/node/.n8n/nodes
- N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true
- N8N_SMTP_SENDER=${SMTP_EMAIL}
- N8N_SMTP_USER=${SMTP_EMAIL}
- N8N_SMTP_PASS=${SMTP_PASS}
- N8N_SMTP_HOST=smtp.gmail.com
- N8N_SMTP_PORT=465
- N8N_SMTP_SSL=false
- QUEUE_BULL_REDIS_HOST=n8n_redis
- QUEUE_BULL_REDIS_PORT=6379
- QUEUE_BULL_REDIS_DB=1
- N8N_METRICS=true
- EXECUTIONS_DATA_PRUNE=true
- EXECUTIONS_DATA_MAX_AGE=336
- N8N_AI_ENABLED=false
- N8N_AI_PROVIDER=openai
- N8N_AI_OPENAI_API_KEY=${OPENAI_KEY}
- NODE_FUNCTION_ALLOW_BUILTIN=*
- NODE_FUNCTION_ALLOW_EXTERNAL=moment,lodash
- GENERIC_TIMEZONE=America/Sao_Paulo
- TZ=America/Sao_Paulo
- N8N_DEFAULT_LOCALE=pt-BR
deploy:
mode: replicated
replicas: 1
placement:
constraints:
- node.role == manager
resources:
limits:
cpus: "1"
memory: 1024M
labels:
- traefik.enable=true
- traefik.http.routers.n8n_editor.rule=Host(`n8n.mydomain.com`)
- traefik.http.routers.n8n_editor.entrypoints=websecure
- traefik.http.routers.n8n_editor.priority=1
- traefik.http.routers.n8n_editor.tls.certresolver=letsencryptresolver
- traefik.http.routers.n8n_editor.service=n8n_editor
- traefik.http.services.n8n_editor.loadbalancer.server.port=5678
- traefik.http.services.n8n_editor.loadbalancer.passHostHeader=1
## --------------------------- ORION --------------------------- ##
n8n_webhook:
image: n8nio/n8n:latest
command: webhook
networks:
- rede
environment:
- N8N_FIX_MIGRATIONS=true
- DB_TYPE=postgresdb
- DB_POSTGRESDB_DATABASE=n8n_queue
- DB_POSTGRESDB_HOST=postgres
- DB_POSTGRESDB_PORT=5432
- DB_POSTGRESDB_USER=postgres
- DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD}
- N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
- N8N_HOST=n8n.mydomain.com
- N8N_EDITOR_BASE_URL=https://n8n.mydomain.com/
- WEBHOOK_URL=https://n8n.mydomain.com/webhook/
- N8N_PROTOCOL=https
- N8N_ONBOARDING_FLOW_DISABLED=true
- NODE_ENV=production
- EXECUTIONS_MODE=queue
- EXECUTIONS_TIMEOUT=3600
- EXECUTIONS_TIMEOUT_MAX=7200
- OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=true
- N8N_RUNNERS_ENABLED=true
- N8N_RUNNERS_MODE=internal
- N8N_REINSTALL_MISSING_PACKAGES=true
- N8N_COMMUNITY_PACKAGES_ENABLED=true
- N8N_NODE_PATH=/home/node/.n8n/nodes
- N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true
- N8N_SMTP_SENDER=${SMTP_EMAIL}
- N8N_SMTP_USER=${SMTP_EMAIL}
- N8N_SMTP_PASS=${SMTP_PASS}
- N8N_SMTP_HOST=smtp.gmail.com
- N8N_SMTP_PORT=465
- N8N_SMTP_SSL=false
- QUEUE_BULL_REDIS_HOST=n8n_redis
- QUEUE_BULL_REDIS_PORT=6379
- QUEUE_BULL_REDIS_DB=1
- N8N_METRICS=true
- EXECUTIONS_DATA_PRUNE=true
- EXECUTIONS_DATA_MAX_AGE=336
- N8N_AI_ENABLED=false
- N8N_AI_PROVIDER=openai
- N8N_AI_OPENAI_API_KEY=${OPENAI_KEY}
- NODE_FUNCTION_ALLOW_BUILTIN=*
- NODE_FUNCTION_ALLOW_EXTERNAL=moment,lodash
- GENERIC_TIMEZONE=America/Sao_Paulo
- TZ=America/Sao_Paulo
- N8N_DEFAULT_LOCALE=pt-BR
deploy:
mode: replicated
replicas: 1
placement:
constraints:
- node.role == manager
resources:
limits:
cpus: "1"
memory: 1024M
labels:
- traefik.enable=true
- traefik.http.routers.n8n_webhook.rule=(Host(`n8n.mydomain.com/webhook`))
- traefik.http.routers.n8n_webhook.entrypoints=websecure
- traefik.http.routers.n8n_webhook.priority=1
- traefik.http.routers.n8n_webhook.tls.certresolver=letsencryptresolver
- traefik.http.routers.n8n_webhook.service=n8n_webhook
- traefik.http.services.n8n_webhook.loadbalancer.server.port=5678
- traefik.http.services.n8n_webhook.loadbalancer.passHostHeader=1
## --------------------------- ORION --------------------------- ##
n8n_worker:
image: n8nio/n8n:latest
command: worker --concurrency=10
networks:
- rede
environment:
- N8N_FIX_MIGRATIONS=true
- DB_TYPE=postgresdb
- DB_POSTGRESDB_DATABASE=n8n_queue
- DB_POSTGRESDB_HOST=postgres
- DB_POSTGRESDB_PORT=5432
- DB_POSTGRESDB_USER=postgres
- DB_POSTGRESDB_PASSWORD=${POSTGRES_PASSWORD}
- N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
- N8N_HOST=n8n.mydomain.com
- N8N_EDITOR_BASE_URL=https://n8n.mydomain.com/
- WEBHOOK_URL=https://n8n.mydomain.com/webhook/
- N8N_PROTOCOL=https
- N8N_ONBOARDING_FLOW_DISABLED=true
- NODE_ENV=production
- EXECUTIONS_MODE=queue
- EXECUTIONS_TIMEOUT=3600
- EXECUTIONS_TIMEOUT_MAX=7200
- OFFLOAD_MANUAL_EXECUTIONS_TO_WORKERS=true
- N8N_RUNNERS_ENABLED=true
- N8N_RUNNERS_MODE=internal
- N8N_REINSTALL_MISSING_PACKAGES=true
- N8N_COMMUNITY_PACKAGES_ENABLED=true
- N8N_NODE_PATH=/home/node/.n8n/nodes
- N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true
- N8N_SMTP_SENDER=${SMTP_EMAIL}
- N8N_SMTP_USER=${SMTP_EMAIL}
- N8N_SMTP_PASS=${SMTP_PASS}
- N8N_SMTP_HOST=smtp.gmail.com
- N8N_SMTP_PORT=465
- N8N_SMTP_SSL=false
- QUEUE_BULL_REDIS_HOST=n8n_redis
- QUEUE_BULL_REDIS_PORT=6379
- QUEUE_BULL_REDIS_DB=1
- N8N_METRICS=true
- EXECUTIONS_DATA_PRUNE=true
- EXECUTIONS_DATA_MAX_AGE=336
- N8N_AI_ENABLED=false
- N8N_AI_PROVIDER=openai
- N8N_AI_OPENAI_API_KEY=${OPENAI_KEY}
- NODE_FUNCTION_ALLOW_BUILTIN=*
- NODE_FUNCTION_ALLOW_EXTERNAL=moment,lodash
- GENERIC_TIMEZONE=America/Sao_Paulo
- TZ=America/Sao_Paulo
- N8N_DEFAULT_LOCALE=pt-BR
deploy:
mode: replicated
replicas: 1
placement:
constraints:
- node.role == manager
resources:
limits:
cpus: "1"
memory: 1024M
## --------------------------- ORION --------------------------- ##
n8n_redis:
image: redis:latest
command: [
"redis-server",
"--appendonly",
"yes",
"--port",
"6379"
]
volumes:
- n8n_redis:/data
networks:
- rede
#ports:
# - 6379:6379
deploy:
placement:
constraints:
- node.role == manager
resources:
limits:
cpus: "1"
memory: 1024M
## --------------------------- ORION --------------------------- ##
volumes:
n8n_redis:
external: true
name: n8n_redis
networks:
rede:
external: true
name: rede
As suspected WEBHOOK_URL has a /webhook in it
Remove webhook/ from it, it needn’t have it. Then restart.
1 Like
Hi @jabbson ,
I made the adjustment to the WEBHOOK_URL as you suggested and it worked perfectly. The URLs are now showing up in n8n without the extra /webhook.
I also tested the automation with the form and, as I suspected, the form_ending node now returns the completion message correctly.
Thanks a lot for your help!
1 Like
system
September 5, 2025, 12:08pm
6
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Has anyone run into this before? Any reliable way to fix it without reinstalling everything from scratch?
