Cross-site cookies standardization

[annevk]

As discussed in the last call it would be good to sort out our collective story around cookies. Tentative agenda for a dedicated meeting:

1. Are the usual cross-site cookies "blocked" or "partitioned"?
2. Do we need opt-in partitioned cookies? And if so, through CHIPS or requestStorageAccess(), or something else?
3. How do we organize standardization?
4. Interaction of cross-site cookies and SameSite=None.
5. Ephemeral partitioned third-party storage (including cookies) by Brave: Top-Frame lifetime, partitioned storage for embedded frames proposals#18.

[krgovind]

Speaking on behalf of Chrome, we'd be interested in this discussion.

[hober]

How about the 5th Thursday of March (March 31st), in our usual telcon time slot? @annevk

[annevk]

Works for me!

[bc-pi]

Will March 31st be put on the calendar? https://www.w3.org/groups/cg/privacycg/calendar

[krgovind]

@annevk - If we have room on the agenda, would you be open to also discussing on the interaction of cross-site cookies and SameSite=None? I think the behavior of the "Block third-party cookies" setting varies subtly across browsers, so it would be great to understand how they vary and whether it's possible to align.

[annevk]

@krgovind sounds good, added that to OP.

[TanviHacks]

Due to some unforeseen schedule conflicts, we need to postpone this. We are planning to use our regular Thursday, April 14th teleconference for this ad hoc. Sorry about the last minute change!

[samuelweiler]

This has been rescheduled for 14 April 2022.

[erik-anderson]

This has again been rescheduled. We'll now discuss this during our April 28th call.