Please see this blog post discussing how sites can prepare for third-party cookie phaseout:
https://developer.chrome.com/blog/cookie-countdown-2023oct/ In particular, see this note regarding a deprecation trial: https://developer.chrome.com/blog/cookie-countdown-2023oct/#request-additional-time-with-the-third-party-deprecation-trial-for-non-advertising-use-cases On Mon, Sep 11, 2023 at 1:53 AM Johann Hofmann <johann...@google.com> wrote: > Contact emails > > johann...@chromium.org, wanderv...@chromium.org, dylancut...@chromium.org, > johni...@chromium.org > > Specification > > None > > SummaryThis intent is for implementing the changes in Blink that are > necessary to perform a controlled rollout and testing of the planned > upcoming third-party cookie deprecation, to measure and mitigate ecosystem > and user impact. As announced before > <https://groups.google.com/a/chromium.org/g/blink-dev/c/GJl_aMO6Qt4/m/gFEMFo8FAgAJ>, > we will provide two periods of testing (Mode A and Mode B) for sites to > preview and test the lack of third-party cookies. > > Before actually deprecating / removing access to third-party cookies, we > will send an “Intent to Deprecate and Remove” with additional details to > satisfy the Blink launch process requirements. > > For more information on Privacy Sandbox for the Web and Google’s plans to > phase out third-party cookies, see https://privacysandbox.com/open-web/. > > Blink componentInternals>Network>Cookies > TAG review > > None > > TAG review statusNot applicable > Risks > Interoperability and CompatibilityBecause of its ecosystem impact, > third-party cookie deprecation has been the focus of the Privacy Sandbox > effort which includes various proposals > <https://privacysandbox.com/open-web/#proposals-for-the-web> to provide > replacement technologies, which are now either shipping already, or currently > rolling out <https://developer.chrome.com/blog/privacy-sandbox-launch/>. > We will share additional information about the state of interop and compat > in our Intent to Deprecate and Remove. > DebuggabilityNone > Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, Chrome OS, Android, and Android WebView)?All except WebView, at > this stage > Is this feature fully tested by web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> > ?No > Flag nameTestThirdPartyCookiePhaseout > Requires code in //chrome?Yes, some of the infrastructure that supports > rollout and testing needs Chrome code. Embedders can of course still > disable 3PCs without this code. > Estimated milestones > > Initial phase of Deprecation (1%) is planned for Q1 2024, see > https://privacysandbox.com/open-web/#the-privacy-sandbox-timeline. > > Link to entry on the Chrome Platform Status > > https://chromestatus.com/feature/5133113939722240 > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAK7rkMjeMy1ay6dppw0y8K%2B-hLHuu6qwqszJM2HTy3UX5RUaQA%40mail.gmail.com.
