May I propose the following patch to enhance openvpn's compatibility with HTTP/1.1 proxies? See http://tools.ietf.org/html/rfc2616#section-14.23 and http://tools.ietf.org/html/rfc2817#section-5.2
--- proxy.c.orig 2008-10-06 09:22:20.000000000 +0200 +++ proxy.c 2008-10-27 13:30:48.000000000 +0100 @@ -348,6 +348,12 @@ if (!send_line_crlf (sd, buf)) goto error; + /* send Host: header */ + openvpn_snprintf (buf, sizeof(buf), "Host: %s:%d", + host, port); + if (!send_line_crlf (sd, buf)) + goto error; + /* send User-Agent string if provided */ if (p->options.user_agent) { Regards, Frank -- Frank Behrens, Osterwieck, Germany PGP-key 0x5B7C47ED on public servers available.