Reflect 4 Proxy Verified -

Whether you use the reflect-proxy NPM package, a custom Node.js script, or an Nginx Lua module, remember the golden rule: Use the code examples and configurations in this article as a blueprint, but always adapt the security settings to your specific threat model.

(For Node.js http module)

location / set $reflect_mode 0; if ($http_user_agent ~* "DebugBot") set $reflect_mode 1; if ($reflect_mode = 1) # Reflective mode: Echo request back echo_read_request_body; echo "Request Mirrored: $request_body"; break; reflect 4 proxy

Client -> [Reflect Proxy v4] -> Production Server (Response to Client) | +---------------> Staging Server (Silent, Async) Whether you use the reflect-proxy NPM package, a custom Node