     // MARK: Init
     
     init(authorizationURL: String, callbackURL: String) {
-        self.authorizationURL = authorizationURL
-        self.callbackURL = callbackURL
+        self.authorizationURLString = authorizationURL
+        self.callbackURLString = callbackURL
         super.init(nibName: nil, bundle: nil)
     }
     

    
    private var webView = UIWebView()
    
    private var authorizationURL: String!
    private var callbackURL: String!
    
    private var successBlock: FlickrOAuthViewControllerSuccessCompletionHandler!
    private var failureBlock: FlickrOAuthViewControllerFailureCompletionHandler!

        webView.autoresizingMask = UIViewAutoresizing(arrayLiteral: .FlexibleWidth, .FlexibleHeight)
        view.addSubview(webView)
        
        let request = NSURLRequest(URL: authorizationURL)
        webView.loadRequest(request)
        
        let doneBarButtonItem = UIBarButtonItem(barButtonSystemItem: .Done, target: self, action: #selector(dismiss))
