How to use a UserAgent, headers and CookieContainer on WebView2? - vb.net

Question

Using a WebView2 control, I am trying to load into a webpage, but after I log into it, it seems it has some sort of block for generic browser that is not well configured because it keeps loading instead of proceed after the login, so I would like to add a CookieContainer and specify to use Cookies, add headers that specify that decompression is supported and what decompression methods are handled and User agent on WebView2 control same way this answer
works for HttpRequest.
Looking online I only found some code that I've tried to put together, but that's c# and I'm trying to convert it for vb.net but no online tool succeded to convert it yet
Private Sub webView2_NavigationStarting(sender As Object, e As Microsoft.Web.WebView2.Core.CoreWebView2NavigationStartingEventArgs) Handles webView2.NavigationStarting
webView2.AddScriptToExecuteOnDocumentCreated("
window.WebView2.addEventListener('beforenavigate', function(event) {
event.preventDefault();
var xhr = new XMLHttpRequest();
xhr.open(event.detail.verb, event.detail.uri, true);
xhr.setRequestHeader('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36');
xhr.setRequestHeader('Cache-Control', 'no-cache');
xhr.setRequestHeader('Accept-Encoding', 'gzip, deflate');
xhr.onreadystatechange = function() {
if (xhr.readyState === XMLHttpRequest.DONE) {
window.WebView2.injectWebResource(event.detail.id, xhr.responseText);
}
};
xhr.send();
});
")
End Sub
Am I using the rights methods?
edit1:
I've managed to add the UserAgent
Private Sub WebView21_NavigationStarting(sender As Object, args As Microsoft.Web.WebView2.Core.CoreWebView2NavigationStartingEventArgs) Handles WebView21.NavigationStarting
Dim userAgent As String = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36"
Dim script As String = $"window.navigator.userAgent = '{userAgent}';"
WebView21.CoreWebView2.AddScriptToExecuteOnDocumentCreatedAsync(script)
End Sub
but still it doesn't proceed after the login.