squid做反向代理，网站无法login和post，如何解决？

[zhttty]

squid的配置如下，该配置可以浏览被反代的网站，但就是无法login、post和upload...

squid.conf:
http_port 80 transparent
cache_mem 64 MB
cache_dir ufs /var/spool/squid 4096 16 256
cache_effective_user squid
cache_effective_group squid
access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log
visible_hostname xxx
cache_mgr [email protected]
acl all src 0.0.0.0/0.0.0.0
http_access allow all
cache_peer 162.243.xxx.xxx parent 80 0 no-query originserver name=web
cache_peer_domain web blog.xxx.com
cache_peer_access web allow all

题外话：我是想实现类似于cdn以及隐藏真实ip的效果...

[zhttty]

问完问题，转了一圈回来，再仔细翻了squid.conf里边的注释，发现了
# TAG: nonhierarchical_direct
# By default, Squid will send any non-hierarchical requests
# (matching hierarchy_stoplist or not cacheable request type) direct
# to origin servers.
#
# If you set this to off, Squid will prefer to send these
# requests to parents.
#
# Note that in most configurations, by turning this off you will only
# add latency to these request without any improvement in global hit
# ratio.
#
# If you are inside an firewall see never_direct instead of
# this directive.

加了一句：nonhierarchical_direct off 解决。