I see the WPTs have all landed now, thanks.
LGTM1
On 1/16/25 2:16 PM, Qingxin Wu wrote:
https://crrev.com/c/6179638is the CL that's work in progress, but I
hope to submit it soon.
On Thu, Jan 16, 2025 at 12:03 PM Mike Taylor <miketa...@chromium.org>
wrote:
Thanks Paul. Do we have a CL up for forDebuggingOnly that I can
subscribe to?
On 1/14/25 8:20 AM, Paul Jensen wrote:
The Private Aggregation ones landed here
<https://chromium-review.googlesource.com/c/chromium/src/+/6164350>.
The downsampled forDebugginOnly ones are in progress.
On Wed, Dec 18, 2024 at 4:12 PM Mike Taylor
<miketa...@chromium.org> wrote:
Can you let us know when you have landed WPTs?
On 12/17/24 3:44 PM, Paul Jensen wrote:
Contact emails
pauljen...@chromium.org
qingxi...@google.com
Explainer
For original Protected Audience Private Aggregation
reporting support:
https://github.com/WICG/turtledove/pull/386
<https://github.com/WICG/turtledove/pull/386>
For original Protected Audience downsampling
forDebuggingOnly reporting:
https://github.com/WICG/turtledove/pull/1020
<https://github.com/WICG/turtledove/pull/1020>
Specification
Private aggregation reporting:
*
Web spec: https://github.com/WICG/turtledove/pull/1344
<https://github.com/WICG/turtledove/pull/1344/>
*
Protocol spec:
https://github.com/privacysandbox/draft-ietf-bidding-and-auction-services/pull/15
<https://github.com/privacysandbox/draft-ietf-bidding-and-auction-services/pull/15>
Downsampling fDO:
*
Web spec: https://github.com/WICG/turtledove/pull/1325
<https://github.com/WICG/turtledove/pull/1325>
*
Protocol spec:
https://github.com/privacysandbox/draft-ietf-bidding-and-auction-services/pull/17
<https://github.com/privacysandbox/draft-ietf-bidding-and-auction-services/pull/17>
Summary
This feature adds changes necessary in Chrome to support two
reporting mechanisms for Protected Audience (PA) auctions
run on Bidding and Auction Services (B&A)
<https://github.com/privacysandbox/protected-auction-services-docs/blob/main/bidding_auction_services_api.md>:
1.
Private Aggregation Reporting: for measuring aggregate,
cross-site data in a privacy preserving manner.
2.
Downsampling of forDebuggingOnly (fDO) reports: changes
necessary in the client to support the eventual
implementation of downsampling of fDO in B&A. Chrome
previously supported these reporting mechanisms for
on-device PA auctions, and this feature brings them to
B&A on-server auctions.
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
<https://github.com/w3ctag/design-reviews/issues/723>
For Protected Audience Bidding and Auction Services:
https://github.com/w3ctag/design-reviews/issues/1009
<https://github.com/w3ctag/design-reviews/issues/1009>
TAG review status
Completed for Protected Audience, resolved unsatisfied.
Risks
Interoperability and Compatibility
Feature represents optional new behavior that shouldn’t
break existing usage.
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 ofthe Ad Selection API
<https://github.com/WICG/privacy-preserving-ads/blob/main/README.md>which
shares a Web API and services protocol with PA. Their
auction reporting doc
<https://github.com/WICG/privacy-preserving-ads/blob/main/Auction%20Reporting.md>says
future work includes aggregate reporting which can be
facilitated by this.
Web developers:
Private aggregation reporting in Protected Audience:
Discussed on github (1
<https://github.com/WICG/turtledove/issues/164>, 2
<https://github.com/WICG/turtledove/issues/16>, 3
<https://github.com/WICG/turtledove/issues/54>, 4
<https://github.com/WICG/turtledove/issues/289>, 5
<https://github.com/patcg-individual-drafts/private-aggregation-api/issues/12>).
Downsampled forDebuggingOnly in Protected Audience:
Discussed here
<https://github.com/WICG/turtledove/issues/632>and in person
here
<https://github.com/WICG/turtledove/blob/main/meetings/2024-01-17-FLEDGE-call-minutes.md#:~:text=on%20the%20URL.-,forDebuggingOnly%20availability,-%2D%20%23632>.
Debuggability
On-device API surfaces should be debuggable in Chrome
DevTools, and we’ve added extensive mechanisms for debugging
<https://github.com/privacysandbox/fledge-docs/blob/main/debugging_protected_audience_api_services.md>Bidding
and Auction services
<https://github.com/privacysandbox/protected-auction-services-docs/blob/main/bidding_auction_services_api.md#related-documents>.
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>?
We plan to add WPTs to cover this API shortly. We already
have WPTs for Protected Audience Bidding and Auction
Services and for Protected Audience private aggregation
reporting, and will extend these accordingly.
Flag name on chrome://flags
None
Finch feature name
EnableBandAPrivateAggregation,
EnableBandASampleDebugReports
Requires code in //chrome?
False
Estimated milestones
Shipping on desktop and Android in M132.
Anticipated spec changes
None
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5150193518116864
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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