doesn't handle streams

[utdrmac]

Great article. Really helping me write a revproxy for my needs. The core app that I'm trying to proxy seems to open an application/octet-stream and waits for a stream of data from the original endpoint. This proxy-demo can't seem to handle this. I can see the request is forwarded on, but it just hangs, waiting for the connection to close, before returning the data back through.
How can I proxy through this "persistent" connection of streaming data?