public WebVerificationPage(PaymentRequiresThreeDSecureModel model, EventHandler<CardVerificationResult> handler, string loadingTextLabel)
		{
			this.model = model;
			this.handler = handler;
			this.loadingTextLabel = loadingTextLabel;

			InitializeComponent();
			LoadWebPage();
		}
		public void OnDisplay3dSecure(PaymentRequiresThreeDSecureModel result)
		{
			WebVerificationPage webVerificationPage = new WebVerificationPage(result, async (sender, webResult) =>
			{
				Presenter.HandleResult(await PaymentService.Complete3DSecure(result.ReceiptId, webResult.paRes, webResult.md));
				await Navigation.PopModalAsync();
			});

			Navigation.PushModalAsync(webVerificationPage);
		}
		public WebVerificationPage(PaymentRequiresThreeDSecureModel model, EventHandler<CardVerificationResult> handler) : this(model, handler, "Verifying card") { }
		public static void SummonThreeDSecure (PaymentRequiresThreeDSecureModel threedDSecureReceipt, SecureWebView secureWebView)
		{
			secureWebView.ReceiptID =	threedDSecureReceipt.ReceiptId;

			NSCharacterSet allowedCharecterSet = NSCharacterSet.FromString (@":/=,!$&'()*+;[]@#?").InvertedSet;
			NSString paReq = new NSString (threedDSecureReceipt.PaReq);
			var encodedPaReq = paReq.CreateStringByAddingPercentEncoding (allowedCharecterSet);

			NSString termUrl = new NSString ("judo1234567890://threedsecurecallback");
			var encodedTermUrl = termUrl.CreateStringByAddingPercentEncoding (allowedCharecterSet);


			NSUrl url = new NSUrl (threedDSecureReceipt.AcsUrl);

			NSMutableUrlRequest req = new NSMutableUrlRequest (url);

			NSString postString = new NSString ("MD=" + threedDSecureReceipt.Md + "&PaReq=" + encodedPaReq + "&TermUrl=" + encodedTermUrl + "");
			NSData postData = postString.Encode (NSStringEncoding.UTF8);

			req.HttpMethod = "POST";
			req.Body = postData;

			try {
				DispatchQueue.MainQueue.DispatchAfter (DispatchTime.Now, () => {
					secureWebView.LoadRequest (req);

					JudoSDKManager.HideLoading ();
					secureWebView.Hidden = false;
				});
			} catch (Exception e) {
				if (secureWebView._failureCallback != null) {
					var judoError = new JudoError { Exception = e };
					secureWebView._failureCallback (judoError);
				}
			}
		}