Apache2 ProxyPass needs slash at the end in order to prevent 502 errors (bad gateway).
|The proxy server received an invalid response from an upstream server.|
|The proxy server could not handle the request GET /account/login.|
|Reason: DNS lookup failure for: 192.168.71.46:8080account|
|Additionally, a 502 Bad Gateway error was encountered while trying to use an ErrorDocument to handle the request.|