Re: [webauthn] ScopedCredentialDescriptor can contain BufferSources that are processed async

I think this issue is now fixed due to `ScopedCredentialOptions.excludeList` being accessed prior to going async. Similarly for `AssertionOptions.allowList` once PR #371 lands.  *Unless* we ought to [get copies of buffer sources](https://heycam.github.io/webidl/#dfn-get-buffer-source-copy) regardless of going async. 

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Received on Wednesday, 8 March 2017 21:52:09 UTC