Describe the bug
"affected" URLs (e.g. https://myhost.com/affected/mysystem) do not end with a trailing slash and it causes issues on my setup. Issues on another hand have the trailing slash (thanks to the usage of a permalink instead of a custom built URL) and are hence working perfectly well.

Expected behavior
From my understanding of the web standards, all URLs should have a trailing slash (to hence denote a kind of folder and let webservers look for the default index.html file.

Additional context
A PR will follow soon.