For selfhosted n8n using nginx getting 1008 websocket issues

Questions
1

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Getting this issue after integrating ssl certs and nginx

what is the possible fix

2

Try adding this environment variable to your n8n environment/startup

N8N_PUSH_BACKEND=websocket

3

I also added these to my docker instance behind nginx. I honestly don’t remember why I left that VUE one ‘internal’ vs external, but it wasn’t an accident

-e VUE_APP_URL_BASE_API=http://192.168.0.14:5678
-e N8N_TEMPLATES_ENABLED=true -e N8N_PROXY_HOPS=1
-e N8N_HOST=https://myinstance.mydomain.com
-e N8N_EDITOR_BASE_URL=https://myinstance.mydomain.com
-e WEBHOOK_URL=https://myinstance.mydomain.com

4

Make sure your NGINX config includes the following for the WebSocket upgrade:

nginx

CopyEdit

location / {
    proxy_pass http://localhost:5678;  # Adjust if your n8n port differs
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
}

Also, ensure your server block has:

nginx

CopyEdit

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

:locked_with_key: If using SSL (https):

Make sure this block is under your server { listen 443 ssl; } block, not just for port 80.