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Added support to WhatsApp: https://faq.whatsapp.com/1850567238795036/?helpref=uf_share
maintained summary of WebAuthn support by various platforms and products: https://www.cisecurity.org/insights/blog/tracing-the-evolving-levels-of-support-for-webauthn
Implementation
Good hints on implementation and common misconceptions and problems: Corbado Blog - https://www.corbado.com/blog/passkey-implementation-pitfalls-misconceptions-unknowns
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