[Pidgin] #16483: Cannot connect to Google Talk (XMPP) with nss: Handshake failed (-5938)

[Pidgin]

#16483: Cannot connect to Google Talk (XMPP) with nss: Handshake failed  (-5938)
-------------------------+-------------------------------------------------
 Reporter:  gschizas     |      Owner:  EionRobb
     Type:  defect       |     Status:  new
Milestone:               |  Component:  unclassified
  Version:  2.10.11      |   Keywords:  nss xmpp certificate ssl tls proxy
                         |  handshake
-------------------------+-------------------------------------------------
 Since version 2.10.11 (2.10.10 is still working in the exact same
 environment), I've been getting the following error when connecting to
 Google Talk:


 {{{
 proxy: Connection in progress
 proxy: Connected to talk.google.com:443.
 proxy: Using CONNECT tunneling for talk.google.com:443
 proxy: HTTP proxy connection established
 proxy: Connected to talk.google.com:443.
 nss: Handshake failed  (-5938)
 connection: Connection error on 055D3270 (reason: 5 description: SSL
 Handshake Failed)
 }}}

 As it is obvious from the log, I'm using port 443 (instead of the default
 5222) and also I'm using "Old style SSL" in the connection security tab.

 This is probably irrelevant, as the previous version (2.10.10) is working
 with no problems int the exact same environment, but I'm also using two
 proxies to connect, the actual one is Microsoft Forefront TMG, and there's
 cntlm in the middle, to handle the NTLM authentication.

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Ticket URL: <https://developer.pidgin.im/ticket/16483>
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