A controller that caches only get requests

UmbracoCachedGetController.cs

public class CachedGetController : ControllerBase
{
    [HttpGet]
    [OutputCache(Duration = 600)]
    public override ActionResult Index(RenderModel model)
    {
        return base.Index(model);
    }

    [HttpPost]
    public ActionResult Index(RenderModel model, object obj = null)
    {
        return base.Index(model);
    }
}


public abstract class ControllerBase : SurfaceController, IRenderMvcController
{
    public virtual ActionResult Index(RenderModel model)
    {
        return this.CurrentTemplate(model);
    }

    private ActionResult CurrentTemplate(RenderModel model)
    {
        var template = this.ControllerContext.RouteData.Values["action"].ToString();
        return this.View(template, model);
    }
}