<summary>

      Suppress Script Errors In WPF WebBrowser

     </summary>

    public static class WebBrowserExtensions

    {

        public static void SuppressScriptErrors(this WebBrowser webBrowser, bool hide)

        {

            FieldInfo fiComWebBrowser = typeof(WebBrowser).GetField("_axIWebBrowser2", BindingFlags.Instance | BindingFlags.NonPublic);

            if (fiComWebBrowser == null) return;

            object objComWebBrowser = fiComWebBrowser.GetValue(webBrowser);

            if (objComWebBrowser == null) return;

            objComWebBrowser.GetType().InvokeMember("Silent", BindingFlags.SetProperty, null, objComWebBrowser, new object[] { hide });

        }

    }

this.webBrower1.SuppressScriptErrors(true);