data cached with an external helper

[Ghis <gigi_8439@xxxxxxxx>]

Hello,

I use an external helper like squid_ldap_group with a %SRC format. In 
the ACL declaration I add an argument for the call.

external_acl_type my_acl_type children=1 ttl=600 %SRC 
/usr/local/squid/libexec/my_helper options

acl my_acl external my_acl_type my_argument

Documentation mention that results of an external Acl like that are 
cached. Is the result attached to the page? To the ip source? Both? Is 
"my_argument" cached?

Thanks.

Ghislain Garçon