Web Trade Forum

I was just wondering if a buyer had clicked on 2 different affiliate links to a product before buying it. Which affiliate would get the commission?

Affiliate A (the first link to be clicked) or
Affiliate B (the second link to be clicked, but the one clicked right before purchase is made)

There might be a scenario where the buyer has clicked on the first affiliate link, and then found the second affiliate link after searching for more info on the product before buying it.
I hope I've made sense in this post. This question has been bothering me for a while now