asp.net - ASP.NET MVC 3 添加自定义标头异常

Question

我想添加响应头“访问令牌”>名称“我的自定义值”>值

然后我收到此错误；system.platformnotsupportedexception 为什么你认为？

public abstract class BaseController:Controller 
{ 
    protected override void OnActionExecuting(ActionExecutingContext filterContext) 
    { 
       base.Response.AppendHeader("Access-Token", AccessTokenValidator.EncryptToken(LoggedInUserId)); 
       base.OnActionExecuting(filterContext); 
    }
}