Googlebot found the GET request for session/current.json (see meta.discourse.org/session/current.json as an example) on our site and tried to access the page. We found this marked as a 404 in Search Console.
It looks like this gives a 404 if the visitor is not a logged-in user, which seems like an odd response here. Is there an easy fix for this? Or is a fix coming in a discourse release sometime soon?