is it possible to redirect a user from the app canvas page to another website which is hosted on another site e.g. http://www.mydomain.com? i mean i have already done it but currently my app is in development mode so I dont know if its possible to publish it and get it approved or not? if it is not possible let me know how should i do it, basically I want to get some credit card information on my website's page and i want to insert it into my database, thats why I need the external website. If this is not an efficient way to do it please tell me how should i proceed towards it?