Bug: Serviio not recognising m3u playlist with http/https

I have a number of m3u playlists to my local media files which Serviio recognises and plays.

I have recently added a m3u playlist with external links using http and https but these playlists do not appear in Serviio Playlists.
Example is playlist 1-radio-jazz.m3u containing

#EXTM3U
#PLAYLIST:Internet Radio: JAZZ Music

#EXTINF:0,The Jazz Groove Mix #1 (San Francisco, USA)
http://west-mp3-128.streamthejazzgroove.com/stream

#EXTINF:0,Jazz 24/7 GBH (WGBH) (Boston, USA)
https://streams.audio.wgbh.org:8117/Jazz24-7

This is a valid m3u playlist and works with other servers e.g. AssetUPnP.
What is wrong?

[zip]

That is not supported, only local file paths can be a part of a playlist Serviio can serve.

You could give this plugin a try.

That is not supported, only local file paths can be a part of a playlist Serviio can serve.
You could give this plugin a try.

Thanks Petr - I will have a look. I did use Groovy a while back.
Is it still compatible as it seems to date back to 2012.

Http/https m3u playlists do seem widely used - see GitHub etc.