Re: [webauthn] Need to have authenticator-only extensions (#2331)

> It _could_ be a spec concern, if the spec were to say that a client MUST NOT filter out extensions it does not recognise. Of course it doesn't say that - at least not at the moment.

Yes, I think this is the key point - browsers are currently making a choice because the spec has a hole in it. That hole should be clarified and explicit in what the behaviour is. 

Though on the other hand, it's unlikely browsers will change their behaviour even if the spec were clarified. 

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Received on Tuesday, 19 August 2025 04:49:26 UTC