Problem with push notifications PWA in iOS 16.4

The problem is that when I load a custom permissions window from a third-party domain, it gets blocked in PWA. If I load this script from the root of the site, everything is fine. Is this some kind of documented limitation? Are there any options to solve this?

Service-worker file is loaded ok, but permissions frame file is blocked. Both files are loaded from a third party domain.

Problem with push notifications PWA in iOS 16.4
 
 
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