The "PublicKeyCredential" WebIDL object's "id", "discovery", and "type" fields are blank in Firefox Nightly. Both of those fields are inherited from Credential Management's WebIDL "Credential" type. [1] "id" should be set to the base64url encoding of the data in "rawId". "type" should be the literal "public-key" "discovery" should be the literal "remote", but as an "internal slot" it doesn't appear in the WebIDL, nor have a Getter. So that might be a follow-up to resolve. [1] https://www.w3.org/TR/webauthn/#publickeycredential

Comment on attachment 8890115 [details] Bug 1384307 - Set WebAuthn PublicKeyCredential's "id" and "type" fields https://reviewboard.mozilla.org/r/161200/#review166546 Cool - lgtm. ::: dom/webauthn/tests/test_webauthn_loopback.html:54 (Diff revision 1) > - attestationObject: CBOR object > - clientDataJSON: serialized JSON > - clientExtensionResults: (not yet supported) > */ > > + is(aCredInfo.type, "public-key", "Credential type must be public-key") nit: to me it makes sense to check these in the same order as the comment, but no big deal

Thanks for the review, David! Marking checkin-needed.

Pushed by ryanvm@gmail.com: https://hg.mozilla.org/integration/autoland/rev/42013738df2a Set WebAuthn PublicKeyCredential's "id" and "type" fields r=keeler