Configuring Cassette to work with a CDN

CassetteConfiguration.cs

var staticDomain = ConfigurationManager.AppSettings["StaticDomain"];
settings.UrlModifier = new StaticDomainUrlModifier(settings.UrlModifier, staticDomain);

StaticDomainUrlModifier.cs

    public class StaticDomainUrlModifier : IUrlModifier
    {
        private readonly IUrlModifier baseModifier;
        private readonly string staticDomain;

        public StaticDomainUrlModifier(IUrlModifier baseModifier, string staticDomain)
        {
            this.baseModifier = baseModifier;
            this.staticDomain = staticDomain;
        }

        /// <summary>
        /// Prepends the static domain to the beginning of the server relative URL path.
        /// </summary>
        public string Modify(string url)
        {
            return staticDomain + baseModifier.Modify(url);
        }
    }