Disabling certain blocking policy element for specific URLs

Not sure if this is the best solution, but this seems to work. Copy your policy and name it for example 'my_policy_allow_500'. In this policy, you will allow 500 as a valid response. So you have the policy 'my_policy' enabled on your virtual server. And select when needed the 'my_policy_allow_500' when needed.

when HTTP_REQUEST {
    if { [HTTP::uri] starts_with "/folder/folder/" } {
        ASM::enable /Common/my_policy_allow_500
    }
}

The disadvantage of this approach is that you have to maintain two policies. Hopefully someone comes up with a better solution 🙂