When I send desktop users to authenticate with twitter, if they click ‘Sign Up’ for Twitter, they are sent to the registration form, and then returned to the ‘authenticate’ step which prompts them to approve access to my app.
When I send mobile users to authenticate with twitter, if they click ‘Sign Up’ for Twitter, they are sent to the mobile registration form, and then they are sent to mobile.twitter.com’s home.
I need them to be returned to the authenticate step, as afterwards I redirect them to my application to ask them for further information.
Is this intentional? I vaguely remember this working differently earlier this summer.