GZipping content files in ASP.NET MVC 3

我使用以下属性来装饰我的BaseController类。

public class OutputCompressAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        string encodingsAccepted = filterContext.HttpContext.Request.Headers["Accept-Encoding"];
        if (string.IsNullOrEmpty(encodingsAccepted))
            return;
        encodingsAccepted = encodingsAccepted.ToLowerInvariant();
        HttpResponseBase response = filterContext.HttpContext.Response;
        if (encodingsAccepted.Contains("gzip"))
        {
            response.AppendHeader("Content-encoding", "gzip");
            response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
        }
        else if (encodingsAccepted.Contains("deflate"))
        {
            response.AppendHeader("Content-encoding", "deflate");
            response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
        }
    }
}

问题是，尽管这对视图和每个操作结果都很好，但该属性对项目的/Content文件夹中的内容不起作用。我想知道如何使Content文件夹中的文件使用控制器，或者以某种方式绑定或被允许将这些过滤器附加到响应标头的东西钩住。