Intent to Ship: Protected Audience (B&A): Support multiple sellers in navigator.getInterestGroupAdAuctionData
Russ Hamilton
Explainer
https://github.com/WICG/turtledove/pull/1403
Specification
https://wicg.github.io/turtledove/#getInterestGroupAdAuctionData
https://github.com/WICG/turtledove/pull/1389
Summary
Add support for navigator.getInterestGroupAdAuctionData to return the encrypted B&A request payload for multiple sellers in a single call. This allows multiple sellers sharing a single piece of on-page JavaScript to more efficiently run Protected Audience advertisement selection auctions.
Blink component
TAG review
For Protected Audience Bidding and Auction Services: https://github.com/w3ctag/design-reviews/issues/1009
For Protected Audience: https://github.com/w3ctag/design-reviews/issues/723
TAG review status
Completed for Protected Audience Bidding and Auction Services, declined.
Completed for Protected Audience, resolved unsatisfied.
Risks
Interoperability and Compatibility
Optional new functionality that does not break existing use.
Gecko & WebKit: Negative from Mozilla for the parent proposal, Protected Audience Bidding and Auction Services. No signal from Webkit on parent proposal, Protected Audience Bidding and Auction Services.
Edge: Edge is running an Origin Trial of the Ad Selection API which shares a Web API and services protocol with Protected Audience and will also benefit from this extension.
Web developers: Requested here
WebView application risks
Protected Audience not available in WebView
Debuggability
API is debuggable in DevTools - developers can step over the API call and see the results.
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?
Flag name on about://flags
None
Finch feature name
FledgeBiddingAndAuctionServerAPIMultiSeller
Requires code in //chrome?
False
Estimated milestones
Anticipated spec changes
No anticipated spec changes.
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5167187989626880?gate=5069253138710528
Chris Harrelson
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Russ Hamilton
Mike Taylor
LGTM2
Russ Hamilton
Vladimir Levin
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Russ Hamilton
LGTM3
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