Intent to Ship: Attribution Reporting features (change registration limit, remove 1hr delay)

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Akash Nadan

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Sep 11, 2023, 4:58:14 PM9/11/23
to blink-dev
Contact emails

john...@chromium.org, cshar...@chromium.org


Explainer

https://github.com/WICG/attribution-reporting-api/blob/main/EVENT.md

https://github.com/WICG/attribution-reporting-api/blob/main/AGGREGATE.md

https://github.com/WICG/attribution-reporting-api/blob/main/AGGREGATION_SERVICE_TEE.md


Specification

https://wicg.github.io/attribution-reporting-api/


Blink component

Internals > AttributionReporting


Summary

We plan on landing a few changes to the Attribution Reporting API focused on:

  • Increasing limits on registration data size to allow more flexibility

  • Removing non-privacy-bearing browser-imposed delay to allow reports to be received faster


Spec changes
  1. Remove aggregation keys size limit on trigger registration
  2. Remove 1-hour delay between end of report window and transmission

Risks
Interoperability and Compatibility

Change (1) and (2) are both fully backwards compatible. (1) will allow registration of more data than before. (2) will allow reports to arrive more quickly than before.

              


Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?

All except Android WebView


Is this feature fully tested by web-platform-tests?

Yes


Estimated milestones

Chrome 118


Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5089526405398528


Links to previous Intent discussions

Previous I2S: 

https://groups.google.com/a/chromium.org/g/blink-dev/c/2Rmj5V6FSaY

https://groups.google.com/a/chromium.org/g/blink-dev/c/nWF61c8xu-M/m/uMmH1ewcAQAJ


Yoav Weiss

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Sep 16, 2023, 10:29:13 AM9/16/23
to Akash Nadan, blink-dev
LGTM1

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Mike Taylor

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Sep 18, 2023, 9:10:21 AM9/18/23
to Yoav Weiss, Akash Nadan, blink-dev

Rick Byers

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Sep 19, 2023, 6:18:03 PM9/19/23
to Mike Taylor, Yoav Weiss, Akash Nadan, blink-dev
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