ASP.NET MVC页面不通过3G或某些代理服务器提供

We've just pushed out a new ASP.NET MVC based web-app that works fine on all desktop connections, and all mobile devices such as iPhone, etc. However, when certain pages are viewed over a 3G connection (either via a 3G dongle on a laptop, or directly on a mobile device), a blank, white page is served with no content of any kind. It appears as if we've returned an empty request.We've just pushed out a new ASP.NET MVC based w