In core this is all handled automagically by the login button, but if you did want to send a user somewhere special after login you can add the ?origin= parameter to the /auth URL
For example: http://try.discourse.org/auth/facebook?origin=/t/60
In core this is all handled automagically by the login button, but if you did want to send a user somewhere special after login you can add the ?origin= parameter to the /auth URL
For example: http://try.discourse.org/auth/facebook?origin=/t/60