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[OAUTH-WG] Full Third-Party Cookie Blocking

Dominick Baier <dbaier@leastprivilege.com> Wed, 25 March 2020 13:55 UTC

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From: Dominick Baier <dbaier@leastprivilege.com>
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Date: Wed, 25 Mar 2020 06:55:20 -0700
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Subject: [OAUTH-WG] Full Third-Party Cookie Blocking
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This

https://webkit.org/blog/10218/full-third-party-cookie-blocking-and-more/

Really means that “modern” SPAs based on a combination of OIDC and OAuth
will not work anymore

both

* silent-renew for access token management
* OIDC JS session notifications

Will not work anymore. Or don’t work anymore already today - e.g. in Brave.

This means SPAs would need to be forced to do refresh tokens - and there is
no solution right now for session notifications.

Maybe the browser apps BCP / OAuth 2.1 should strictly advice against the
“browser apps without a back-end” scenario and promote the BFF style
architecture instead.

Cheers
———
Dominick Baier

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