How can I get the click event ?

I would like to hook click event from Unity project.
I wrote following source code but I could not get.

void Start()
{
    var go = new GameObject( "WebViewObject" );
    webViewObject = (new GameObject("WebViewObject")).AddComponent<WebViewObject>();
    webViewObject.Init
    (
        cb      : msg => Debug.LogFormat( "HTML からメッセージを取得しました", msg ),
        err     : msg => Debug.LogFormat( "エラーが発生しました", msg ),
        started : msg => Debug.LogFormat( "ページの読み込みを開始しました", msg ),
        ld      : msg => Debug.LogFormat( "ページの読み込みが完了しました", msg ),
        enableWKWebView : true
    );
    webViewObject.LoadURL(url);
    webViewObject.SetMargins(50, 300, 50, 50);
    webViewObject.SetVisibility(true); 

}

Please let me know how to hook click event.
Do I need to use Javascript on webpage for getting click event?

Best Regards.

Start by reading the WebViewObject.Init callback usage shown in the issue and checking how the Unity project communicates with the loaded webpage. Done means identifying a documented, reproducible way to receive a webpage click event in Unity, or clarifying the required JavaScript bridge.