i have tested "CONNECT blablabla" request over TLS connection and found issue. Apache 2.2.17, standard schema for VirtualHost:443 ProxyRequests on ProxyVia on AllowCONNECT 443 <Proxy *> Order Deny,Allow Deny from all Allow from 127.0.0.1 </Proxy> so, i want to allow CONNECT proxy on 443 port and want to proxy requests to remote 443 hosts. okay, apache gets my SSL secured request "CONNECT ....." w/o any problem, but then sends me response "HTTP/1.0 200 Connection Established" using not secured layer (seems just pushes text response to tcp stream), so, my client (Apache Java HTTPClient) failed to parse SSL response. it is easy to reproduce problem and capture "bad" response by tcpdump.
*** This bug has been marked as a duplicate of bug 29744 ***