Nancy Manage static contents with hooking builder that add a header when request static content.

Startup.cs

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Reflection;

using CustomerWanso.Defined;

using Nancy;
using Nancy.Conventions;
using Nancy.Extensions;
using Nancy.Bootstrappers.Ninject;
using Nancy.ViewEngines;
using Nancy.ErrorHandling;


namespace CustomerWanso
{
    public class Startup : NinjectNancyBootstrapper
    {
        protected override void ConfigureConventions(Nancy.Conventions.NancyConventions nancyConventions)
        {
            base.ConfigureConventions(nancyConventions);

            //정적 파일(이미지, 스타일, 자바스크립트 등) 폴더 모음
            string[] paths = { "/Styles", "/Scripts", "/Images" };
            //응답 객체를 후크를 사용하여 경우에 따른 도메인 허용 헤더 삽입
            Func<NancyContext, Response, Response> hook = (ctx,res) =>
            {
                if (res != null) res.WithHeader("Access-Control-Allow-Origin", "*");
                return res;
            };
            //각 정적 파일별로 정적 폴더 대상 선언
            foreach (string path in paths)
            {
                var method = StaticContentConventionBuilder.AddDirectory(path);
                nancyConventions.StaticContentsConventions.Add((a, b) => hook(a,method(a, b)));
            }
        }
    }
}