By Forum Systems Support | Date posted: February 7, 2014
A request or response message might trigger the “Invalid HTTP Message” IDP rule in Sentry resulting in the “No Matching Request Filter” error. This is a very common support issue that is easily identified and resolved.
To resolve the problem, ensure that the client is specifying the correct Content-Type HTTP Header and/or using the appropriate HTTP Method. Alternatively you can adjust the HTTP Request Filters defined for the policy.