/cart/change.js doesn't update properties

New Member
2 0 1

I try to update my line item's properties with 'change.js' but it doesn't work

The call returns a 200 like everything went fine but either the quantity or the property has been updated. I don't understand at all. It's like it's not possible to change properties with this call.

Here is my call:

jQuery.post('/cart/change.js', {
        id: 35483649278111,
        quantity: 12,
        properties: {"Delivery Month": "APRIL"}

How do you use this call?