Content-Length http header stripped out on Sprint 3G network <p>I have a server I am communicating with and I get a Content-Length header in the response when I connect with my iPhone 4S via WiFi, or via Web Browser. If I disable WiFi and use my Sprint 3G connection on my iPhone 4S, the Content-Length header in the response is missing.</p> <p>Server is running WCF under IIS 7.5 ...</p> <p>Does anyone know why this might happen?</p>