Even for opted-in users, Apple is reducing the amount of click data that can be transmitted via both in-app browsers and Safari. This new protocol was rejected

Even for opted-in users, Apple is reducing the amount of click data that can be transmitted via both in-app browsers and Safari. This new protocol was rejected by multiple W3C committees because it breaks a lot of fraud prevention mechanisms, but Apple is moving forward with it anyways. https://webkit.org/blog/8943/privacy-preserving-ad-click-attribution-for-the-web/ https://webkit.org/blog/8943/privacy-preserving-ad-click-att...