using postbackurl to navigate to different pages

Jul 12, 2010 at 1:57 PM
hi! im writing a facebook canvas iframe application. currently i'm using the CanvasIFrameMasterPage base class to handle the authentication process. opening the application in facebook adds some parameters like the auth_token to the call to my canvas page. now when im using the postbackurl property of asp .net to navigate to another page these parameters are lost, resulting in the canvasiframemasterpage to be unable to authenticate me. so i am taken back to the main page (apps.facebook,.com/myapp). how can i save these parameters? thank you for your help!