[tor-bugs] #19910 [Applications/Tor Browser]: Rip out optimistic data socks handshake variant (#3875)

[Tor Bug Tracker & Wiki]

#19910: Rip out optimistic data socks handshake variant (#3875)
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 Reporter:  cypherpunks               |          Owner:  tbb-team
     Type:  defect                    |         Status:  reopened
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by arlolra):

 Tor Messenger is reverting this patch (#3875) in
 https://gitweb.torproject.org/tor-messenger-
 build.git/commit/?id=cd2bb57632ac4278da6d70fe3339bb64b38d29eb since it
 seems to be breaking STARTTLS in XMPP.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19910#comment:3>
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