I developed a news app that leads users to third-party websites like Wall Street Journal. Apple rejected my app because these websites contain in-app purchase. Specifically, Apple says:
"We noticed that your app or its metadata enables the purchase of content, services, or functionality in the app by means other than the in-app purchase API, which is not appropriate for the App Store."
What can I do other than creating in-app purchase for every single website that possibly contains a paywall?