@Override
    public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) {
      WVC.onReceivedHttpAuthRequest(view, handler, host, realm);
    }
Unconventional way of adding a Javascript interface but the main reason why I took this way
is that it is working stable compared to the webview.addJavascriptInterface way.
selendroid-server/src/main/java/io/selendroid/server/model/SelendroidWebDriver.java