The second extension to the HTTP Server challenge is now live: Persistent Connections.
By the end of this extension, your HTTP server will support persistent connections, allowing it to handle multiple requests over a single TCP connection. You’ll also get a clearer understanding of how the Connection header controls that behavior.
Please give this a try and let us know how it can be improved! @ryan-gang (author of this extension), and I will be available here to help out with any tester or instruction-related issues.