[webauthn] new commits pushed by selfissued

The following commits were just pushed by selfissued to https://github.com/w3c/webauthn:

* Clarify that SafetyNet response uses base64url (#1021)

Merging, per decision on 8-Aug-18 call
  by Arnar Birgisson
https://github.com/w3c/webauthn/commit/653203d077584e5def14a367da5538c9d51fc473

Received on Wednesday, 8 August 2018 17:11:36 UTC