We should flip WebCore's m_privateClickMeasurementFraudPreventionEnabled to true in RuntimeEnabledFeartures.h if HAVE(RSA_BSSA) to match the setting in WebPreferencesExperimental.yaml.
Created attachment 435276 [details] Patch
<rdar://problem/81754557>
Created attachment 435322 [details] Patch
Comment on attachment 435322 [details] Patch Thanks, Tim!
Committed r280930 (240447@main): <https://commits.webkit.org/240447@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 435322 [details].