- I removed the default use of "Pragma: no-cache" from libcurl when a proxy is

used. It has been used since forever but it was never a good idea to use
  unless explicitly asked for.

tests/data/test233

@@ -80,14 +80,12 @@ GET http://first.host.it.is/we/want/that/page/233 HTTP/1.1
 Proxy-Authorization: Basic dGVzdGluZzp0aGlz
 Authorization: Basic aWFtOm15c2VsZg==
 Host: first.host.it.is
-Pragma: no-cache
 Accept: */*
 Proxy-Connection: Keep-Alive
 
 GET http://goto.second.host.now/2330002 HTTP/1.1
 Proxy-Authorization: Basic dGVzdGluZzp0aGlz
 Host: goto.second.host.now
-Pragma: no-cache
 Accept: */*
 Proxy-Connection: Keep-Alive