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Explainer https://github.com/WICG/turtledove/pull/1272 Specification https://github.com/WICG/turtledove/pull/1321 https://github.com/WICG/turtledove/pull/1328 https://github.com/WICG/turtledove/pull/1341 https://github.com/WICG/turtledove/pull/1349 https://github.com/WICG/turtledove/pull/1353 Summary There have been industry requests to add various resource usage/performance metrics to Protected Audience, to be reported via Private Aggregation ([1], [2], [3]), and earlier feedback on similar features suggesting that it's important to report these once per auction. To address it, a new reporting event keyword "reserved.once" is added to address report timing, and new baseValue keywords are added to provide various resource usage/performance metric values. This launch adds this new support to on-device auctions. We anticipate extending this support to auctions run on Bidding and Auction Services in the future, and do not anticipate additional risk from that extension. [1] https://github.com/patcg-individual-drafts/private-aggregation-api/issues/119 [2] https://github.com/WICG/turtledove/issues/1151 [3] https://github.com/WICG/turtledove/issues/1170 Blink component Blink>InterestGroups <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EInterestGroups> TAG review For Protected Audience: https://github.com/w3ctag/design-reviews/issues/723 For Private Aggregation: https://github.com/w3ctag/design-reviews/issues/846 TAG review status Completed for Protected Audience, resolved unsatisfied. For Private Aggregation: declined. Risks Interoperability and Compatibility Optional new functionality that does not break existing use. Gecko & WebKit: For Protected Audiences in general - Negative from Mozilla <https://github.com/mozilla/standards-positions/issues/770#issuecomment-2432124085>. No signal from Webkit <https://github.com/WebKit/standards-positions/issues/158#issuecomment-2432121278> . Edge: Edge is running an Origin Trial of the Ad Selection API <https://github.com/WICG/privacy-preserving-ads/blob/main/README.md> which shares a Web API and services protocol with Protected Audience. The services protocol is currently being extended to support Private Aggregation <https://groups.google.com/a/chromium.org/g/blink-dev/c/5CZ9X8htGeg/m/2uU5ve7qBAAJ> . Web developers: Requested by several developers, see [1] [2] [3] above. WebView application risksNot exposed to WebView. Debuggability Private Aggregation provides a debug mode which makes generated reports inspectable. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? It will be supported on all platforms that support Protected Audience, so all but WebView. Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ? Yes to the extent possible — tests of resource usage metrics can only verify bounds, not exact values. Flag name on about://flags None Finch feature name PrivateAggregationApiProtectedAudienceAdditionalExtensions Requires code in //chrome? False Estimated milestones Stable launch in M132. Anticipated spec changes None Link to entry on the Chrome Platform Status https://chromestatus.com/feature/4515723416961024?gate=6567874628681728 -- 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 visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABQTWrnbtqLi1eP303dAdg4qDWANPRo-VYX6dL1ftNUewzn-yw%40mail.gmail.com.
