http {
    server {
        listen 8080;
        listen [::]:8080;

        location /some/path/ {
            proxy_pass http://localhost:9888/;
            proxy_http_version 1.1;
            proxy_set_header Host $host;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $http_connection;
            proxy_set_header X-Forwarded-Host $host;
            proxy_set_header X-Forwarded-Port $server_port;
            proxy_set_header X-Forwarded-Prefix "/some/path";
        }
    }
}

events {
}