Magento 2, Magento Checkout, Magento Frontend Adding New Variables to window.checkoutConfig on Magento 2 checkout
Magento Checkout Call to a member function getSku() on a non-object in app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php
Magento, Magento Checkout, Magento Validation State or Province or other validations in magento checkout