Fixing missing Slash '/' in APK serving URL

[0x33taji]

I have a URL like https://apk.example.com which is a directory listing like https://download.osmand.net/releases/
In other words, it is just a directory full of apks, and just served by python3 -m http.server

I wish to add and update these apks through obtainium. Basically it serves as a proxy for all the play store apks as required.

Now, say in the directory I have https://apk.exmple.com/com.brave.browser_1.71.118.apk that I wish to add and update via obtainium. For updating, I will manually update the apk in the directory with say, for example, com.brave.browser_1.72.18.apk

This is the problem that is happening:

App source URL: https://apk.example.com or https://apk.example.com/ (with ending slash)
Custom APK Link Filter by Regular Expression: brave

Output
Unexpected Error
ClientException with SocketException: Failed Host lookup: 'apk.example.comcom.brave.browser_1.71.118.apk' (OS Error: No address associated with hostname, errno = 7), uri=apk.example.comcom.brave.browser_1.71.118.apk

Observation
For some reason the (slash) '/' in the url goes missing. The uri should be 'apk.example.com**/**com.brave.browser_1.71.118.apk'

How can I add this slash / to the URL?

[0x33taji]

Issue Resolution

1. add at least one sub-folder in the serving directory. In other words, make the url https://apk.example.com/path/
   This is a BUG in obtainium.

2. setting 'Override Source' to 'HTML'
   May I suggest 'Override Source' can be renamed to just 'Source'?
   My thought process was that I was not 'Overriding' anything, so just skimmed over the very first option. My bad 🥲