WebView2打开新窗口的问题tab禁止弹窗

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Microsoft.Web.WebView2.Core;
using Microsoft.Web.WebView2.WinForms;
namespace chome
{
    public partial class FMTEST : Form
    {
        public FMTEST()
        {
            InitializeComponent();
        }
        
        private async void FMTEST_LoadAsync(object sender, EventArgs e)
        {
            webView21.Source = n
            await webView21.EnsureCoreWebView2Async();
            webView21.CoreWebView2.NewWindowRequested += CoreWebView2_NewWindowRequested;
        }
        private void CoreWebView2_NewWindowRequested(object sender,CoreWebView2NewWindowRequestedEventArgs e)
        {
            //e.NewWindow = webView22.CoreWebView2;
            //在第二个webview2上面打开这个新窗口
            webView22.Source = new Uri(e.Uri.ToString());
            e.Handled = true;//禁止弹窗

        }
    }
}