I am having a problem on finding how to make simpleCart js work with both checkbox and select. I have builded a sample of a code below. As you can see the problem is that if we check the checkbox, it will put in cart one item with bar on foo and small on test. We unckeck it and press add, it will put an item with only test=small. If we check again the foo checkbox and we press add, it will update the one without the bar, where it should update the one with the bar.
Thank you for your help and excuse me for my bad english.