Reponse of OnBeforeResourceLoad is always null

[WilliamQue]

I want to catch all responses after clicking the login button by BeforeResourceLoad enent of webview, and the responses are always null, so I can't get the resonses' bodies.

So, is the following a right way?

    private void WebView_OnBeforeResourceLoad(ResourceHandler rh) {
        if (rh.Url.Contains("user/info")) {
            if (rh.Response != null) {
                using (StreamReader reader = new StreamReader(rh.Response)){
                    string text = reader.ReadToEnd();
                    Console.WriteLine(text);
                }
            }
        }
    }

If you have a little more time , please help me how to get cookies when visiting an url. online help of webview2 is detailed, but this has too little to to be mastered easily.