The "custom" radio player I made relies on javascript.
https://kotiboksi.xyz/radio.ogg
Here is the link to the direct radio stream, you can listen to it in your browser or with basically any media player. I would personally recommend mpv.
If you just want to verify that the javascript isn't malicious, all of it is stored in the index.html file, so feel free to just view page source and look at the code. Yes, the radio player will stream the audio through tor, if you are using the onion address.