nginx.conf

# Used for PaaS deployment

events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    # Enable access logs with more details
    log_format detailed '$remote_addr - $remote_user [$time_local] '
                        '"$request" $status $body_bytes_sent '
                        '"$http_referer" "$http_user_agent" '
                        '$request_time $upstream_response_time';
    
    access_log /var/log/nginx/access.log detailed;
    error_log /var/log/nginx/error.log debug;

    # Enable gzip compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    server {
        listen 80;
        server_name localhost;
        root /usr/share/nginx/html;
        index index.html;

        # Prevent redirect loops
        absolute_redirect off;

        # Direct file matches - no rewrites or fallbacks
        location = /favicon.ico {
            try_files $uri =404;
            access_log /var/log/nginx/favicon-access.log detailed;
            error_log /var/log/nginx/favicon-error.log debug;
            expires 30d;
            add_header Cache-Control "public, no-transform";
            add_header X-Debug-Message "Serving favicon" always;
            error_page 404 =404;  # Prevent falling back to index.html
        }

        location = /ads.txt {
            alias /usr/share/nginx/html/ads.txt;
            access_log off;
            expires 1h;
            add_header Cache-Control "public, no-transform";
            error_page 404 =404 /404.html;
        }

        location = /robots.txt {
            alias /usr/share/nginx/html/robots.txt;
            access_log off;
            expires 1h;
            add_header Cache-Control "public, no-transform";
        }

        location = /sitemap.xml {
            alias /usr/share/nginx/html/sitemap.xml;
            access_log off;
            expires 1h;
            add_header Cache-Control "public, no-transform";
            add_header Content-Type "application/xml";
        }

        # Serve static frontend files and handle client-side routing
        location / {
            # First attempt to serve request as file or directory
            try_files $uri $uri/ /index.html;
            add_header Cache-Control "no-cache, no-store, must-revalidate";
            add_header Pragma "no-cache";
            add_header Expires "0";
            
            # Add headers for debugging
            add_header X-Debug-Message "Serving frontend file" always;
        }

        # Handle /cookies route
        location = /cookies {
            try_files /index.html =404;
            add_header Cache-Control "no-cache, no-store, must-revalidate";
            add_header Pragma "no-cache";
            add_header Expires "0";
            add_header X-Debug-Message "Serving cookies page" always;
        }

        # Proxy API requests
        location /api/ {
            proxy_pass http://localhost:8080/;
            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;
            
            # Add headers for debugging
            add_header X-Debug-Message "Proxying to API" always;
        }

        # Handle 404 errors - but not for favicon.ico and ads.txt
        error_page 404 /index.html;
    }
}