This solution is also relevant if teh Proxy does not Support teh SSL protocol or ciphers that are used by the Client/Server.

<proxy>
URL.domain=example.com detect_protocol(none)

Alternative (geeingnet für eine Liste von Domains)

<proxy> detect_protocol(none)
  [URL.domain]
    www.example.com
    ssl.example.com
    www.example.net
    ...