Strengthening Our Policies on Affiliate Programs in Chrome Extensions
developer.chrome.com
developer.chrome.com
Megalag's video on the topic: https://www.youtube.com/watch?v=vc4yL3YTwWk
With the conversion rate already so high at the checkout screen where coupons are applied, it seems hard to make the case that snagging the referral from the original referring party is fair.