Rails - How to add CSRF Protection to forms created in javascript?

Question

I'm using backbone.js and it works great. but the forms I'm creating as a javascript template lacks the rails csrf protection token. How do I add it to templates I'm creating in javascript?

Answer 1

If you have <%= csrf_meta_tag %> in your layout somewhere and that is accessible to you from the js, then you can access it using $('meta[name="csrf-token"]')

See http://eunikorn.blogspot.com/2011/07/working-with-backbonejs-in-harmony-with.html for an idea on how to hack in csrf support into each backbone request