How to know what's blocked by WKContentRuleList

It would be great to know Apple's response to this. We use a blocker on a WkWebView but do not receive any feedback on what is blocked; not even basic statistics like how many things were blocked. The only recourse I know of is reparsing the ruleset over a domain yourself which is obviously very inefficient and potentially error prone.

This means we are unable to easily report anything back to the user. The only indication a user gets that blocking is working is that a webpage is missing content or not working as expected (e.g. sign in flows often do nefarious stuff and fail to work with a content blocker being employed). There only recourse at this point is to whitelist that domain.

Would be nice to be able to tell what's being blocked so I can see if my WKContentRuleList is working properly. Testing one of these lists is kind of a nightmare.