How to use cache proxy serve in ip balancer in Ryu?

Hello. I have created an IP balancer, here is the code https://github.com/spartakos87/cache_balancer/blob/changes/ryu_cache_balancher.pyAs a balancer my code works well, I make a get in 10.0.0.2 I get to redirect the HTTP request to 10.0.0.1 My problem is that I want to use a proxy server that can make a cache of "website". So, I redirect the traffic again in 10.0.0.2 my proxy get the HTTP request from the client but I don't see any traffic from my proxy to server 10.0.0.2 Can anyone help me with this? I am stuck a lot of days.