server {
    listen 80;
    server_name domain.com;

    testcookie off;
    testcookie_name BPC;
    testcookie_secret keepmescret;
    testcookie_session $remote_addr;
    testcookie_arg attempt;
    testcookie_max_attempts 3;
    testcookie_fallback /cookies.html?backurl=http://$host$request_uri;
    testcookie_get_only on;

    location = /cookies.html {
        root /var/www/public_html;
    }

    location / {
        testcookie on;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_pass http://127.0.0.1:8080;
    }
}