With this code I just create a new umbraco node (OrderDocType) and refresh the current page,
after the response.redirect I try to get my order back with linq.

When I do so I don't get my node back until I hit F5.
Does anybody know how to solve this problem?

        protected void Page_Load(object sender, EventArgs e)
        {
            if (Request["product"] != null)
            {
                var orderNr = DateTime.Now.ToString("yyyyMMdd") + "-" + StringHelper.TruncString(Guid.NewGuid().ToString().Replace("-", ""), 20, false);
                var docOrder = DocumentType.GetByAlias("OrderDoctype");
                var newOrder = Document.MakeNew(orderNr, docOrder, new User(0), 1234);
                newOrder.getProperty("orderNr").Value = orderNr;
                newOrder.Publish(admin);
                library.UpdateDocumentCache(newOrder.Id);

                CookieHelper.AddCookie("OrderNr", orderNr);

                var current = Node.GetCurrent();
                Response.Redirect(current.NiceUrl);
            }
            else
            {
                if (CookieHelper.GetCookie("OrderNr") != null)
                {
                    var orderNr = CookieHelper.GetCookie("OrderNr");
                    _ctx = new WebsDataContext(); 
                    var order = (from o in _ctx.OrderDoctypes
                                 where o.OrderNr == orderNr
                                 select o).First();
                    _ctx.Dispose();
                }
            }
        }