c# 今用webBrowser js错误弹框警告

using System;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Windows.Controls;

namespace 浏览器测试
{
    public class WebBrowserHelper
    {
        public static void MakeWebBrowserNavigateToSelf(WebBrowser wb)
        {
            wb.LoadCompleted += Wb_LoadCompleted;
        }

        private static readonly Guid SID_SWebBrowserApp = new Guid("0002DF05-0000-0000-C000-000000000046");

        private static void Wb_LoadCompleted(object sender, System.Windows.Navigation.NavigationEventArgs e)
        {
            if (sender is WebBrowser wb)
            {
                IServiceProvider serviceProvider = (IServiceProvider)wb.Document;

                Guid serviceGuid = SID_SWebBrowserApp;
                Guid iid = typeof(SHDocVw.IWebBrowser2).GUID;
                SHDocVw.IWebBrowser2 myWebBrowser2 = (SHDocVw.IWebBrowser2)serviceProvider.QueryService(ref serviceGuid, ref iid);
                SHDocVw.DWebBrowserEvents_Event wbEvents = (SHDocVw.DWebBrowserEvents_Event)myWebBrowser2;
                wbEvents.NewWindow += new SHDocVw.DWebBrowserEvents_NewWindowEventHandler(OnWebBrowserNewWindow);
                void OnWebBrowserNewWindow(string URL, int Flags, string TargetFrameName, ref object PostData, string Headers, ref bool Processed)
                {
                    Processed = true;
                    wb.Navigate(URL);
                }
            }
        }

        [ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        [Guid("6d5140c1-7436-11ce-8034-00aa006009fa")]
        internal interface IServiceProvider
        {
            [return: MarshalAs(UnmanagedType.IUnknown)]
            object QueryService(ref Guid guidService, ref Guid riid);
        }


        public static void MakeWebBrowserSilent(WebBrowser wb)
        {

            if (wb == null)
            {
                return;
            }
            wb.Navigated += delegate
            {
                IOleServiceProvider sp = wb.Document as IOleServiceProvider;
                if (sp != null)
                {
                    Guid IID_IWebBrowserApp = new Guid("0002DF05-0000-0000-C000-000000000046");
                    Guid IID_IWebBrowser2 = new Guid("D30C1661-CDAF-11d0-8A3E-00C04FC9E26E");

                    object webBrowser;
                    sp.QueryService(ref IID_IWebBrowserApp, ref IID_IWebBrowser2, out webBrowser);
                    if (webBrowser != null)
                    {
                        webBrowser.GetType().InvokeMember("Silent", BindingFlags.Instance | BindingFlags.Public | BindingFlags.PutDispProperty, null, webBrowser, new object[] { true });
                    }
                }
            };
        }


        [ComImport, Guid("6D5140C1-7436-11CE-8034-00AA006009FA"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
        private interface IOleServiceProvider
        {
            [PreserveSig]
            int QueryService([In] ref Guid guidService, [In] ref Guid riid, [MarshalAs(UnmanagedType.IDispatch)] out object ppvObject);
        }
    }
}