How does this work? I see the pending POST in the Chrome network tab, which completes when someone downloads it, and then become pending again for the next download. So are you proxying the uploaded data to the downloading client?
An interesting difference is that in the browser the rePOSTing is done through scripting whereas when using cURL or Wget (or httpie, or ...) the server will issue a 307 Temporary Redirect allowing cURL/Wget to send the file again without manual intervention. Hence the name! (although that doesn't really account for the "Station" part yet)
Could you please elaborate a bit on how you work with the TCP window size -- how might I set it to 0 and back? Do you simply use SO_RCVBUF or is there more to it?
If you happen to go through with making more variants of this, it would be amazing if you could make them open source as well (even just the backend). It's a clever idea that solves a very real problem!
For any other versions or source releases I'll post an update!