HTTP/1.1 502 Proxy Error Server: Apache/2.4.10 (Ubuntu) mod_gnutls/0.6 GnuTLS/3.2.16 Content-Length: 407 Connection: close Content-Type: text/html; charset=iso-8859-1 502 Proxy Error

Proxy Error

The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /proxy/test.txt.

Reason: Error reading from remote server

- Peer has closed the GnuTLS connection