question about redirect http and https request to different cache peer

[xiaoJay <xiaojay@xxxxxxxxx>]

Hello :

My squid version is 2.7.
I have 2 cache peer,  and want to redirect http and https request to
different cache peer.

Here is my conf:

acl ACL_HTTPS proto HTTPS
acl ACL_HTTP proto HTTP
cache_peer 127.0.0.1 parent 5000 0 name=https_peer no-query
no-netdb-exchange no-delay
cache_peer 127.0.0.1 parent 5001 0 name=http_peer no-query
no-netdb-exchange no-delay
cache_peer_access https_peer allow ACL_HTTPS
cache_peer_access http_peer allow ACL_HTTP
never_direct allow all

However,  http request is successfully redirected to
http_peer(127.0.0.1:5001) but https request is not working as expected
so, what is wrong?
Thanks in advance