Spree drag and drop: not recognizing JS

Greetings,

I asked this over at the Spree google group but got no response. I'm
hoping someone here might have experience with this.

I am implementing a drag and drop cart with Rails 3 and jQuery. This
cart works outside of Spree.

The URL I call from the drop action is hardcoded as
/products/add_to_cart.js.

I also added an Add To Cart button that uses the new :remote => true

<%= form_tag url_for(:action => 'add_to_cart', :id => domid), :id =>
"add-to-cart-form", :remote => true do %>
        <%= submit_tag "Add to Order" %>
<% end %>

This works! the add_to_cart method fires and understands I want a JS
response. However, the problem still occurs when I try to drag and
drop. Of course, I can't (don't know how) to use the rails remote
helper inside of the javascript so I am "hardcoding" the call to /
products/add_to_cart.js.

So, rails is recognizing JS when done from a remote form but not by
passing the .js extension. What do I need to do to get it to
recognize this? Or, is there a better way?

TIA,
Dan

I solved this by adding a

post "products/add_to_cart"

to the routes.rb

-Dan