WebSocket issues and slow interface on self-hosted Taiga instance (Docker)

[glazole]

Hi Taiga Team,

I’m running a self-hosted Taiga instance using Docker, and I’m encountering two persistent problems:

1. Very slow UI and page navigation

• The interface often becomes unresponsive.
• Switching between pages or projects takes a long time.
• Sometimes the browser seems stuck when navigating.

2. Repeated WebSocket failures

The browser console shows continuous WebSocket connection errors to the /events endpoint. Example messages:

• WebSocket connection to 'wss://[domain]/events' failed: Invalid frame header
• WebSocket is closed before the connection is established
• 400 (Bad Request) on /api/v1/auth

I’ve attached a screenshot of the browser console showing the issue.

Setup details

• Taiga is deployed using Docker.
• I’m using the following Nginx configuration to route traffic to frontend, backend, and WebSocket services:

server {
    listen 80;
    server_name [domain];

    location / {
        proxy_pass http://taiga-front;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /api {
        proxy_pass http://taiga-back:8000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /websocket {
        proxy_pass http://taiga-events:8888;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    location /media/ {
        alias /media/;
        access_log off;
        expires max;
        add_header Cache-Control "public";
        autoindex off;
    }

    location /static/ {
        alias /static/;
        access_log off;
        expires max;
        add_header Cache-Control "public";
        autoindex off;
    }

    error_log /var/log/nginx/taiga_error.log;
    client_max_body_size 350M;
    sendfile on;
    tcp_nodelay on;
    tcp_nopush on;
    keepalive_requests 100;
    keepalive_timeout 75;
}

What I’m looking for

• Help identifying the cause of WebSocket failures.
• Advice on how to improve performance and reduce frontend lag.
• Any known compatibility or configuration issues for Docker deployments of Taiga.

Thanks so much for your help and for maintaining this great project!