CefSharp禁止弹出新窗体，在同一窗口打开链接，并且支持带type="POST" target="_blank"的链接

private void Window_Loaded(object sender, RoutedEventArgs e)
{
_browser = new ExtChromiumBrowser() { Dock = DockStyle.Fill };
BindBrowser(_browser);
_browser.FrameLoadEnd += FrameLoadEnd;
_browser.Load(_tokenUrl);
host.Child = _browser;
}

private void BindBrowser(ExtChromiumBrowser browser)
{
browser.StartNewWindow += (s, e) =>
{
var control = new System.Windows.Forms.Control();
control.Dock = DockStyle.Fill;
control.CreateControl();
host.Child = control;
control.Focus();

e.WindowInfo.SetAsChild(control.Handle, 0, 0, (int)host.ActualWidth, (int)host.ActualHeight);
};
browser.FrameLoadStart += (ss, ee) =>
{
this.Dispatcher.BeginInvoke(new Action(() =>
{
(ss as ExtChromiumBrowser).Focus();
}));
};
}