Answer by Maggie Ying for displaymode for mobile with desktop view for ipad in asp.net mvc 4

This is a known issue, and we have recently released a workaround NuGet package for MVC 4: http://nuget.org/packages/Microsoft.AspNet.Mvc.FixedDisplayModes.

The workaround is to simply install this NuGet package to your project. If, however, your application customize the collection of the registered view engines, you should make sure that you reference to

Microsoft.Web.Mvc.FixedRazorViewEngine

or

Microsoft.Web.Mvc.FixedWebFormViewEngine

instead of the default view engine implementation.