soulseekah/prestashop-variable-shipping — pull request #3 by tucoinfo (2014-04-10 11:24:22+00:00)
Title: Allow payment of variable shipping in FO

This change enables variableshipping carrier in the FO so that payment can be made by the customer. This is safe because only a BO employee can add this carrier. Tested on PS 1.5.6.0

But, how to lock the cart or detect if more products have been added by the customer?