$ curl -i "http://velobike.ru/proxy/parkings/"
HTTP/1.1 500 INTERNAL SERVER ERROR
Server: nginx/1.4.6 (Ubuntu)
Date: Fri, 28 Apr 2017 17:55:46 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Language, Cookie
X-Frame-Options: SAMEORIGIN
Content-Language: ru