Filter based aggregatable deduplication

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Nan Lin

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Jan 25, 2023, 4:38:50 PM 1/25/23

to attribution-re...@chromium.org

Hi everyone,

As proposed in issue 664 , we plan to support filter based aggregatable deduplication, similar to the deduplication mechanism in event-level reports.

We're considering removing the existing aggregatable_deduplication_key field in Attribution-Reporting-Register-Trigger header which was introduced in M108. Note that this is a backward incompatible change and the aggregatable deduplication key set in the old way ( aggregatable_deduplication_key ) will be silently dropped.

Please let us know if there's any concern with this change.

Thanks,
Nan

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