Magento 1.9 prevent select of unavailable configuration.
In magento when using configurable swatches for my configurable product options, I don't want unavailable options to be selectable. So, for example configurable product is a t-shirt, and it has two options: size and type.
size has small and large options.
type has 1, 2, and 3.
size small is available with only type 1, but large you can choose options 2 or 3.
So as a user if I click swatch for size small to select this size, below swatches for type 2 and 3 are slighlty made to be opaque and a grey stroke through them, all good and well. But, they are still selectable and I can go and select type 2 or 3.
So, is there a way I could get it to work so if size small selected only type 1 swatch is selectable and vice versa?