/// <summary>
        /// Handles redirect if the response's status code is redirect, redirects are turned on, and the header has
        /// a location.
        /// When the status code is <c>303</c> the method on the request is changed to a GET as per the RFC2616 
        /// specification. On a redirect, it also removes the <c>Authorization</c> and all <c>If-*</c> request headers.
        /// </summary>
        /// <returns> Whether this method changed the request and handled redirect successfully. </returns>
        private bool HandleRedirect(HttpResponseMessage message)
            // TODO(peleyal): think if it's better to move that code to RedirectUnsucessfulResponseHandler
            var uri = message.Headers.Location;
            if (!message.IsRedirectStatusCode() || uri == null)
                return false;

            var request = message.RequestMessage;
            request.RequestUri = new Uri(request.RequestUri, uri);
            // Status code for a resource that has moved to a new URI and should be retrieved using GET.
            if (message.StatusCode == HttpStatusCode.SeeOther)
                request.Method = HttpMethod.Get;
            // Clear Authorization and If-* headers.
            request.Headers.IfModifiedSince = null;
            request.Headers.IfUnmodifiedSince = null;
            return true;