I'm using head, with a spelling fix to mod_proxy comment (probably the cause of the breakage) and a tweak to allow proxy connect to bypass the balancer, and this silly testcase isn't working:
192.168.1.11 - - [03/Sep/2004:12:05:59 -0400] "GET http://127.0.0.1:10101/cgi-bin/printenv HTTP/1.0" 404 236
error log has:
[Fri Sep 03 12:05:59 2004] [error] [client 127.0.0.1] File does not exist: proxy:http://127.0.0.1:10101/cgi-bin/printenv
Sounds like the proxy_http module isn't picking up on the request. -- justin