[Webkit-unassigned] [Bug 228104] New: PCM: Safari on iOS and macOS are not sending ad click attribution reports for Private Click Measurement

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228104

            Bug ID: 228104
           Summary: PCM: Safari on iOS and macOS are not sending ad click
                    attribution reports for Private Click Measurement
           Product: WebKit
           Version: Safari 14
          Hardware: Mac (Intel)
                OS: macOS 11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: karthikapplepcm at gmail.com

I am trying to use the Apple Private Click Measurement API for measuring ads conversions. I am able to receive attribution reports in Safari Technology Preview browser(Release 127 (Safari 15.0, WebKit 16612.1.18.11.3)) but on trying the same steps in Safari(Safari Version 14.1.1 (16611.2.7.1.4)) on macOS BigSur 11.4 (Macbook Pro), I am not receiving any attribution reports.
Waited for more than 48 hours after conversion registration on the .well-known url but still don't see any attribution reports.

Observing the same on my iPhone iOS(14.6 18F72) Safari mobile browser.

In Safari Technology Preview browser as well, attribution reports are not sent reliably when the delay is 1-2 days. Some are sent while some are never sent.

Filed bugs about the same with Apple here: 
https://feedbackassistant.apple.com/feedback/9367526 (iOS Safari)
https://feedbackassistant.apple.com/feedback/9367494 (macOS Safari)

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