[squid-users] accelerated requests with Authorization

Hi,

I am a little puzzled by squid 2.6 behaviour: Authentication header
is not forwarded to origin servers when squid is in accelerator mode.
My squid.conf says something like this:

http_port 80 vhost
cache_peer host1 80 0 proxy-only origin-server
acl my_domain dstdomain .my.tld
cache_peer_access allow my_domain
cache_peer_access deny all

This sounds silly, but am I missing something?
Is it possible to authenticate in origin servers?

Thank you very much in advance,

-- 
Gonzalo A. Arana