HtmlAgilityPack HtmlWeb.Load() 不支持 gzip 的解决方法

            _htmlWeb = new HtmlWeb();
            HtmlWeb.PreRequestHandler handler = delegate (HttpWebRequest request)
            {
                request.Headers[HttpRequestHeader.AcceptEncoding] = "gzip, deflate";
                request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
                request.CookieContainer = new System.Net.CookieContainer();
                return true;
            };
            _htmlWeb.PreRequest += handler;