rails_csrf_backbone.js.coffee

Backbone._sync = Backbone.sync

Backbone.sync = (method, model, options) ->
  if method is 'create' or method is 'update' or method is 'put' or method is 'delete'
    options.headers ?= {}
    options.headers["X-CSRF-Token"] = $("meta[name='csrf-token']").attr 'content'

  return Backbone._sync(method, model, options);