#813: FedCM Auto Re-authentication API
Discussions
2023-02-20
Hadley: [leaves comment about lack of explainer]
Amy: I think this is too early.. still going back and forth with group members on this in an issue. There's no privacy & security questionnaire.
2023-03-13
Hadley: we weren't happy with explainer - asked them for a proper explainer - they have not responded.
2023-06-12
Hadley: looked at in the tokyo face to face. I'm not sure their reply addresses Peter's question. My main concern.. prevent silent access.. the site calling the browser after the user clicks sign out... sounds like credentials are still in the browser.. could there be ways to override that? On the other hand the browser as the UA is the place we've decided to trust for all this stuff anyway. So I think it's okay.
Peter: in saml in a lot of implementations you can sign out of the RP without signing out of the IDP. You're just closing the session. So if you revisit the same app it autorelogs you in.
Hadley: so you have multiple steps to sign out, that don't necessarily feel intuitive? That's not good for the user
Peter: in saml there's the possibility that when you sign out of an app you can feed it upstream and sign it out of the idp as well. And that can kill sessions of other RPs, but that's very rarely implemented. I don't know if this flow is an issue in FedCM. In my experiecne most users don't undrestand the difference between signing into an RP vs an IDP. If you're on a computer that isn't yours, most cases people will think they have signed out but haven't. Concerned about people walking away from active sessions that they don't realise they're walking away form.
Hadley: I think that's worth making explicit
Peter: this might be addressed elsewhere in FedCM, don't want to add noise. Need more time - plenary.
2023-06-19
Amy: They've asked "since there's no new API should we close this review"?
Yves: and they've said they align with firefox.
set to proposed closing and bumped to f2f to close
OpenedFeb 3, 2023
Wotcher TAG!
I'm requesting a TAG review of FedCM Auto Re-authentication API .
An extension to the existing FedCM API that provides a streamlined UX when users return to websites. The API requires that the user has already granted permission for the RelyingParty (RP) and Identity Provider (IdP) communication in the browser through a previous FedCM call.
Further details:
You should also know that the initial FedCM TAG review is https://github.com/w3ctag/design-reviews/issues/718. We're requesting a review specifically on the addition: auto re-authentication.
We'd prefer the TAG provide feedback as (please delete all but the desired option): 💬 leave review feedback as a comment in this issue and @-notify @yi-gu