     // MARK: - WKNavigationDelegate
     
     func webView(webView: WKWebView, didFailNavigation navigation: WKNavigation!, withError error: NSError) {
-        print("didFailNavigation")
     }
     
     func webView(webView: WKWebView, didFinishNavigation navigation: WKNavigation!) {

    required init(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        let script = WKUserScript(source: getSource(), injectionTime: WKUserScriptInjectionTime.AtDocumentEnd, forMainFrameOnly: false)
        let userContentController = WKUserContentController()
        userContentController.addUserScript(script)
        let configuration = WKWebViewConfiguration()
        configuration.userContentController = userContentController;
        return WKWebView(frame: self.view.bounds, configuration: configuration)
