M4A can not be downloaded in some clients

So 3 redirects for each asset slug?

https://podcast.funkenstrahlen.de/fs/mp3 => http://podcast.funkenstrahlen.de/feed/mp3
http://podcast.funkenstrahlen.de/fs/mp3 => http://podcast.funkenstrahlen.de/feed/mp3
https://podcast.funkenstrahlen.de/feed/mp3 => http://podcast.funkenstrahlen.de/feed/mp3

If I now try to access https://podcast.funkenstrahlen.de/fs/mp3 via Chrome:

The last rule is the problem. https://podcast.funkenstrahlen.de/feed/mp3 => http://podcast.funkenstrahlen.de/feed/mp3 It creates the loop. How can I set a rule like this without creating a loop?