LIOT/EMIS.Web/Controls/Filters/ServiceControllerFilter.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace EMIS.Web.Controls.Filters
{
    public class ServiceControllerAttribute : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            if (filterContext.Controller.GetType().Namespace.StartsWith("EMIS.Web.ApiControllers"))
            {
                try
                {
                    filterContext.HttpContext.Response.AddHeader("Access-Control-Allow-Origin", "*");
                    filterContext.HttpContext.Response.AddHeader("Access-Control-Allow-Methods", "POST");
                    filterContext.HttpContext.Response.AddHeader("Access-Control-Allow-Headers", "x-requested-with,content-type");
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            }

            base.OnActionExecuting(filterContext);
        }
    }
}