Filter parameters from the query string as they pass through the gateway. The gateway applies filters after other
transformations, so any parameters set or renamed must also be listed here when using an ALLOW type policy.
BLOCK drops any query parameters that are in the list of items, so it acts as an exclusion list. ALLOW
permits only the parameters in the list and removes all others, so it acts as an inclusion list.
Filter parameters from the query string as they pass through the gateway. The gateway applies filters after other transformations, so any parameters set or renamed must also be listed here when using an ALLOW type policy.