NEW 274801
Intelligent Tracking Prevention (ITP) rules being applied to service worker traffic 
https://bugs.webkit.org/show_bug.cgi?id=274801
Summary Intelligent Tracking Prevention (ITP) rules being applied to service worker t...
singhsa
Reported 2024-05-28 14:48:13 PDT
We ran into an issue in Safari 17 where Intelligent Tracking Prevention (ITP) rules were being applied to service worker traffic, which resulted in blocked resources and a significant drop in Google Analytics traffic. We use Akamai script manager to optimize the third-party scripts on our website. Akamai script manager uses service workers to load third-party scripts, including the Google Analytics script. After Safari 17 was released, we discovered that the script was being blocked by Safari. We then found this article, which described a similar issue: https://www.kedos.co.uk/p/news/tech-safari-17-anomaly-service-worker-and-itp-conflict. We tested our site with service workers enabled and disabled, which helped us determine the root cause of the problem.
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Matthew Finkel
Comment 1 2024-05-29 11:17:33 PDT
Thanks for reporting this, we'll investigate.
Radar WebKit Bug Importer
Comment 2 2024-05-29 12:01:42 PDT
<rdar://problem/128956101>
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