squid做反向代理，网站无法login和post，如何解决？

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。