I\'m in a tough situation in which a Java web service endpoint hosted on an IBM HTTP Server (IHS) requires a Content-Length header, although it supposedly conforms to HTTP/1
transferMode=StreamedResponse in the app.config helped me too for an issue similar to yours.
I had a WCF architecture for Sync Framework and Squid proxy 3.1.20 didn't like the Streamed transferMode
Many thanks !