We periodically run into issues on our M2.2.3 website, where customer cannot seem to complete their checkout process (spinning circle for example).
It has been a nightmare to try and debug these issues since no server-side logs are generated for certain kinds of problems (and many customers refuse to want to help us debug the problem... I cannot blame them in that case).
I'm wondering if anybody knows of an extension that works something like the Advanced Template Hints module that would allow our tech support (while talking to the customer) add a url key, that would then dump a much greater debug detail to the customer/or server for further debugging.
This would be extremely helpful, but its a problem I've been struggling with for years with M2.