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by giarc 2826 days ago
>When you click on that you get redirected to promocode.org where you get re-prompted to click on the promo code and that's where the cookie promo gets tacked on the walgreens website.

Not quite. Notice that when you click "Show Code" (the first click), a new window is opened and the existing window is redirected to Walgreens.com. All the action happens on the first click.