[Hackage] #855: cabal behind proxy

[Hackage]

#855: cabal behind proxy
---------------------------------+------------------------------------------
  Reporter:  sms                 |        Owner:                       
      Type:  defect              |       Status:  new                  
  Priority:  normal              |    Milestone:                       
 Component:  cabal-install tool  |      Version:  1.10.1.0             
  Severity:  normal              |     Keywords:  proxy, authentication
Difficulty:  unknown             |   Ghcversion:                       
  Platform:  Windows             |  
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 I'm getting an error

 No action for prompting/generating user+password credentials  provided
 (use: setAuthorityGen); returning Nothing

 when using 'cabal update' being behind proxy that is requiring
 authentication.

 My login and password contain \ and @ symbols, so I have them escaped in
 HTTP_PROXY environment variable:

 HTTP_PROXY=http://domain%5Cuser:passw%40rd@proxy.host:3128

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/855>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects