HTTP forward to Pool not working as expected

The description for CACHE::disable says it's only being disabled for that request so I assume you're using it properly.

Hoolio brought up a good point about persistence.

Also, if you set persist to none for one case, you should explicitly set persistence in the other case. This is because the persist command takes effect for the duration of the connection.

So, as part of your else statement, it might be wise to define it unless you don't need persistence within the pool_http_bbdev pool.