HTTP/1.1 500 Internal Server Error
Content-Type: text/html; charset=UTF-8
Date: Thu, 19 Sep 2019 23:49:31 GMT
X-Powered-By: Servlet/2.5 JSP/2.1
Content-Length: 883
Connection: Close

HTTP/1.1 503 Service Unavailable: Back-end server is at capacity
Content-Length: 0
Connection: Close