Mojo+Nginx+FastCGI issue

=== nginx vhost config ===
server {
    listen   80;
    server_name  labs.tld;
    access_log  /var/log/nginx/labs.log;
    location / {
        root /var/virtual.www/labs/public;
        # Our Mojolicious app runs on this address
        fastcgi_pass   127.0.0.1:5000;
        # Default fastcgi parameters
        include /etc/nginx/fastcgi_params;
        # Fixes
        fastcgi_param  PATH_INFO          $fastcgi_script_name;
    }
}


=== run command ===
plackup ./script/labs -s FCGI -E production


=== /etc/nginx/fastcgi_params ===
fastcgi_param   QUERY_STRING            $query_string;
fastcgi_param   REQUEST_METHOD          $request_method;
fastcgi_param   CONTENT_TYPE            $content_type;
fastcgi_param   CONTENT_LENGTH          $content_length;

fastcgi_param   SCRIPT_FILENAME         $request_filename;
fastcgi_param   SCRIPT_NAME             $fastcgi_script_name;
fastcgi_param   REQUEST_URI             $request_uri;
fastcgi_param   DOCUMENT_URI            $document_uri;
fastcgi_param   DOCUMENT_ROOT           $document_root;
fastcgi_param   SERVER_PROTOCOL         $server_protocol;

fastcgi_param   GATEWAY_INTERFACE       CGI/1.1;
fastcgi_param   SERVER_SOFTWARE         nginx/$nginx_version;

fastcgi_param   REMOTE_ADDR             $remote_addr;
fastcgi_param   REMOTE_PORT             $remote_port;
fastcgi_param   SERVER_ADDR             $server_addr;
fastcgi_param   SERVER_PORT             $server_port;
fastcgi_param   SERVER_NAME             $server_name;

fastcgi_param   HTTPS                   $https;