LGTM to extend one more milestone (M126).
On 6/5/24 11:57 PM, John Delaney wrote:
We would like to extend the Cookie Deprecation Label experimental
feature being used for Chrome Facilitated Testing. This feature
previously received approval to run through the end of M125 (ending
roughly June 10, 2024). The Facilitated Testing period, however, is
scheduled to run through June 30, 2024.
Therefore, we would like to extend Cookie Deprecation Labels for
another milestone through M126.
Contact emails
johni...@chromium.org <mailto:johni...@chromium.org>,
wanderv...@chromium.org <mailto:wanderv...@chromium.org>,
lin...@chromium.org <mailto:lin...@chromium.org>
Explainer
https://github.com/privacysandbox/tpcd-labeling/blob/main/cookie_deprecation_labeling_explainer.md
<https://github.com/privacysandbox/tpcd-labeling/blob/main/cookie_deprecation_labeling_explainer.md>
https://developer.chrome.com/en/docs/privacy-sandbox/chrome-testing
<https://developer.chrome.com/en/docs/privacy-sandbox/chrome-testing>
Summary
To prepare for the third-party cookie deprecation, it is important to
understand the full impact of Chrome’s planned transition from
third-party cookies to the Privacy Sandbox Ads APIs.
This experiment exposes a temporary set of APIs which provide access
to browser-determined treatment and control groups to support opt-in
server side testing of the third-party cookie deprecation.
We are exploring ways to address ecosystem feedback that we should
continue supporting labels after 30 June. We expect to provide more
information soon.
Link to “Intent to Experiment” blink-dev discussion
https://groups.google.com/a/chromium.org/g/blink-dev/c/3escBQGtIpM/m/ntcytva5BgAJ
<https://groups.google.com/a/chromium.org/g/blink-dev/c/3escBQGtIpM/m/ntcytva5BgAJ>
Goals for experimentation
The goal of this experiment is to allow adtechs to evaluate the impact
of third party cookie phase out through opt-in server side testing. We
expect partners to run experiments downstream from the browser
provided treatment and control groups.
Experimental timeline
Previously the feature was approved until M125. We'd like to extend
the experiment by one milestone to M126 so that we can continue to
support the Chrome Facilitated Testing period until June 30, 2024. Any
experimentation after June 30 will be covered by another Intent.
Any risks when the experiment finishes?
Minimal. The feature is designed in a way that websites must feature
detect for the web API. This feature is also only available for a
subset of users.
Reason this experiment is being extended
This feature is necessary to support the ongoing Chrome Facilitated
Testing effort
<https://developers.google.com/privacy-sandbox/relevance/setup/web/chrome-facilitated-testing>.
The Facilitated Testing period is scheduled to complete on June 30,
2024 which is slightly beyond our previous approval for the feature.
Therefore we are requesting to extend the experimental feature access
to M126.
Ongoing technical constraints
None
Will this feature be supported on all five Blink platforms supported
by Origin Trials (Windows, Mac, Linux, Chrome OS, and Android)?
No, not supported on webview.
Link to entry on the feature dashboard
https://chromestatus.com/feature/5189079788683264
<https://chromestatus.com/feature/5189079788683264>
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