Missing HTTP 404 dedicated page
The issue was found by @piotrek during 1.15 sanity checks: #1296 (comment 434193)
It looks like there is no proper 404 handling?
I try to open e.g. 127.0.0.1:8080/random/url
and I get redirected to home url, but the page body is blank, there is no feedback about redirection/404.