How to redirect all traffic through a proxy without a loop?

I want to redirect all traffic from my apps and programs (including those that do not support proxy or VPNs in their app configuration) to a local HTTP/SOCKS proxy server, which will then redirect the traffic to an online proxy server. I created the following network topology: However, I want to avoid creating a loop, where the local proxy server redirects traffic to the redirector, which then redirects it back to the local proxy server. Network Topology to Avoid: