How to Implement Redirection-based payment methods, such as PayPal and iDEAL, cannot be framed in. The rationale is that these payment methods are well-known and trusted consumer brands, which don't want to be framed in at another customer-facing site. For Adyen as a business-to-business brand, this is much less an issue, if the right security practices are followed. The goal for the merchant is to keep maximising conversion, even with external payment pages.
