This is a feature I struggled with for quite awhile, so I thought I'd share my solution. The code is actually pretty simple once I got it figured out. Hopefully it will save somebody else some headaches.
To create an easy on-boarding process, I've put a New List form on the front page of Favsi.com. However, creating a list requires the user to be authenticated, so I needed to create a way to retain the user's New List form data through the authentication/registration process, and then post it. Here's a screenshot of the front page: Favsi Front Page Form
- User goes to the front page.
- User fills out the New List form and presses the Create List button.