Examined case with Avihaiclal in detail. A dotnet client calling the gateway 6.2 policy that was pretty simple wrapper for a backend service returned 6 responses, each with the complete duplicated response. When same service called via a browser had a single response. We used auidit logs to review headers between calling methods and could see Keep-Alive, although not proven the suspicion is that this is changing how the backend returns the data to the gateway.