map $request_method $upstream_location {
	PUT http://ritsu.midov.pl:80/ ;
	# this is where the matrix registration is
	POST http://ritsu.midov.pl:80/ ;
	# this is captchouli
	GET  http://mugi.midov.pl:80/ ;
	default  http://mugi.midov.pl:80/ ;
}

server {
	[...]

	location /registerform.sh {
		resolver 10.0.0.3;
		proxy_pass         $upstream_location ;
		proxy_http_version 1.1;
		proxy_set_header X-Real-IP         $remote_addr;
		proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
		proxy_redirect                     http:// https://;
	}

	location /registerform.sh {
		proxy_pass         http://ritsu.midov.pl;
		proxy_http_version 1.1;
		proxy_set_header X-Real-IP         $remote_addr;
		proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
		proxy_redirect                     http:// https://;
	}

}