Hi! I'm trying to configure a squid acl to control what soap requests are allowed to a backend web server.. Only I cannot see a configuration parameter directly specific to SOAP (or XML) protocol. Or even a way to integrate the POST message content in a helper application.. I have looked into validating SOAPAction HTTP header, however this is an optional header which not all SOAP clients use.. The closest thing I can find is the external_acl_type configuration parameter; however this doesn't pass the HTTP POST content to the helper custom program, '%DATA' looked good however this for ACL parameters.. Any help would be much appreciated.. Cheers James