iOS Privacy: Instagram and Facebook can track anything you do on any website in their in-app browser

howisFelix.today? Want to be the first to hear about more privacy and mobile related essays? Subscribe Update: A week later, I’ve published a new post, looking into other apps including TikTok, where I also found an additional JavaScript event listener of Instagram which can monitor all taps on third party websites. Check it out here The iOS Instagram and Facebook app render all third party links

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pcm.js のコメントをみると、Metaピクセルが仕込まれたwebサイトのコンバージョンイベントをかき集めるとあるが、Metaピクセル単体でも同様にしてfacebook.comに送信する機能はある。アプリの側で横取りするのだろうか？