On 6/4/24 1:53 PM, Caleb Raitto wrote:
Response inline
On Monday, June 3, 2024 at 10:16:06 PM UTC-4 Mike Taylor wrote:
On 5/31/24 11:40 PM, Paul Jensen wrote:
Contact emails
pauljen...@chromium.org
Explainer
https://github.com/WICG/turtledove/pull/1095
<https://github.com/WICG/turtledove/pull/1095>
Specification
https://github.com/WICG/turtledove/pull/1124
<https://github.com/WICG/turtledove/pull/1124>
Summary
The Protected Audience API allows bidders to store information,
called an interest group, from a single site in the browser that
can only be read later in the context of an auction. Today,
interest groups can be updated by fetching new values from a
server. For all interest groups, the frequency of these updates
is rate limited to at most once a day to conserve network traffic
and avoid overwhelming servers. However, we've heard from
developers that certain ad campaigns need much more timely
updates. During Protected Audience auctions, the browser fetches
real-time signals from bidders' key-value servers. This proposal
allows the response to these fetches to indicate a subset of
interest groups they’d like updated more frequently than once a day.
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>
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: No signal on parent proposal, Protected Audience.
Asked in the Mozilla forumhere
<https://github.com/mozilla/standards-positions/issues/770>, and
in the Webkit forum here
<https://github.com/WebKit/standards-positions/issues/158>.
Edge: Edge has announced plans to support the Ad Selection API
<https://github.com/WICG/privacy-preserving-ads/blob/main/README.md>which
shares much of its API surface with Protected Audience.
Web developers:
Feature requested by Microsoft in GitHub issue
<https://github.com/WICG/turtledove/issues/729>.
I don't see any feedback from Microsoft on this design in the
issue (just from Criteo, which seems inconclusive). Have they
given feedback elsewhere?
The response from Microsoft (ads) is here:
https://github.com/WICG/turtledove/issues/729#issuecomment-1822190741
-- it's the opening paragraph that starts with "I do think having a
'please refresh when this auction is over' lever is a clear
improvement over the current situation from a functionality perspective".
OK - thanks. I was hoping they might have responded elsewhere to your
request for feedback from April
<https://github.com/WICG/turtledove/issues/729#issuecomment-2077517709>
or May, but I don't see a reason to block on that.
LGTM1
Debuggability
Protected Audience trusted bidding signals show up in the
DevTools Network pane. Updates show up in the Application ->
Storage -> Interest Groups DevTools pane.
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
<https://github.com/web-platform-tests/wpt/blob/f118165cd650448765d2e0efd3d7ee71f1e15e4f/fledge/tentative/trusted-bidding-signals.https.window.js#L973>.
Flag name on chrome://flags
None
Finch feature name
InterestGroupUpdateIfOlderThan
Requires code in //chrome?
False
Estimated milestones
Shipping on desktop and Android in M125.
Anticipated spec changes
None
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5162656775536640
<https://chromestatus.com/feature/5162656775536640>
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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