/// <summary>
        /// Constructor.
        /// </summary>
        public EditorHttpService(
            ISerializer serializer,
            IBootstrapper bootstrapper,
            UrlFormatterCollection urls)
        {
            _serializer   = serializer;
            _bootstrapper = bootstrapper;

            Services = new HttpServiceManager(urls);
        }
        /// <summary>
        /// Constructor.
        /// </summary>
        public EditorHttpService(
            ISerializer serializer,
            IBootstrapper bootstrapper,
            UrlFormatterCollection urls)
        {
            _serializer   = serializer;
            _bootstrapper = bootstrapper;

            Urls    = urls;
            Headers = new Dictionary <string, string>();
        }