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### Purpose Treat X-Forwarded-For as a comma-separated string to prevent nil IP being returned by the Discovery Server ### Testing Unit Tests implemented Testing with a Discovery Client can be done as follows: ``` A simple example to replicate this entails running Discovery with HTTP, use Nginx as a reverse proxy and hardcode (as an example) a list of IPs in the X-Forwarded-For header. 1. Send an Announcement with tcp://0.0.0.0:<some-port> 2. Query the DeviceID 3. Observe the returned IP Address is no longer nil; i.e. `tcp://<nil>:<some-port>` ```