WebView2 log http traffic (inbound and outbound)

As stated in the title i'm interested in the management (reading is sufficient by now) of the the incoming and outgoing data from the WebView2 istance user are using.

I'have try do add listener to WebMessageResourceRequested and WebMessageReceived but i have the sensation i missinterpreted their behaviour becasue they don't work as i expected (so is very likely that i am using that handler in a wrong way)

public partial class SimpleWebView2 : Form
{
    public SimpleWebView2 ()
    {
        InitializeComponent();

        this.Initialization();
    }

    private async void Initialization ()
    {
        await webView21.EnsureCoreWebView2Async();
        webView21.CoreWebView2.WebResourceRequested += new EventHandler<CoreWebView2WebResourceRequestedEventArgs>(this.webView21_WebMessageResourceRequested);
    }

    private void webView21_WebMessageResourceRequested(object sender, CoreWebView2WebResourceRequestedEventArgs e)
    {
         //does not fire
    }
}