Magento onestepcheckout clearing cart

Question

I've been using the OnestepCheckout extension for Magento with success for a long while.
But now I want to set up multiple store views. I set this up correctly, but when I add a store code to the urls, the checkout page empties my cart.

domain.com -> domain.com/onestepcheckout works fine.

But:
domain.com/en -> domain.com/en/onestepcheckout clears the cart

How is this possible? Has it something to do with the setup for cookie domains?

Answer 1

Most probably you are loosing your session during redirection time so monitor your front-end session id and see if this changes. If it changes then you are loosing your cart.