I use the BVN 404 handler on a website with both CMS and Commerce content.
However, it only triggers on URLs to non-existent pages directly below the start page. It does not trigger on URLs pointing to non-existent pages deeper into the site tree.
For the URLs not being redirected, I receive a 404 response with no content (Content-Length: 0), looking like no custom error handling took place.
Obviously the customer wants to use the same custom 404 page for all of the above cases.
Any advice on fixing this?
I haven't tested this, but if you are really finding this I recommend detailing out your issue in the github page https://github.com/Geta/404handler. Geta are pretty good at keeping things like this supported. I hope that helps