nginx.conf

worker_processes 1;

events {
  worker_connections 1024;
}

http {
  # Define a named cache zone for proxy responses
  proxy_cache_path /tmp/nginx_cache levels=1:2 keys_zone=STATIC:10m max_size=100m inactive=60m use_temp_path=off;

  server {
    listen      3002;
    server_name 127.0.0.1;

    # Proxy CGI requests and enable caching for GET requests
    location /cgi-bin {
      proxy_pass http://127.0.0.1:3001;
      proxy_http_version 1.1;
      proxy_set_header Connection "";
      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;

      # Enable caching for GET responses
      proxy_cache STATIC;
      proxy_cache_methods GET;
      proxy_cache_key "$scheme$request_method$host$request_uri";
      proxy_cache_valid 200 302 10m;
      proxy_cache_valid 404 1m;
      add_header X-Proxy-Cache $upstream_cache_status;
    }

    # Serve static assets and apply browser-side caching
    location / {
      root /path/to/your/htdocs;
      index index.htm index.html;

      # Simple regex to match common static asset extensions
      location ~* \.(css|js|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
        expires 30d;
        add_header Cache-Control "public";
        access_log off;
      }
    }
  }
}