[webauthn] Pull Request: Add instructions for passing unknown extensions to authenticators

selfissued has just submitted a new pull request for https://github.com/w3c/webauthn:

== Add instructions for passing unknown extensions to authenticators ==
Fixes #738 

See https://github.com/w3c/webauthn/pull/789

Received on Wednesday, 7 February 2018 23:14:19 UTC