Re: [webauthn] Cross origin authentication without iframes (#1667)

I like this namespace pattern. We have something similar for CTAP in OpenSSH where RPID is being set as `ssh:<>`.  It also allows existing authenticators to not change as well as still gives us flexibility on what we want to allow in cross-origins. 

In addition to above namespace proposal, we can say that only SPC API can invoke cross-origin authentication request outside of iframes and user agent will prefix `spc:` automatically to the RPID being passed along. And in non-spc scenario, cross-origin authentication without iframes is not allowed.

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Received on Wednesday, 3 November 2021 16:17:17 UTC