Well, Live-Webradio on Media Player works fine. But I don't mean "Webradio". I mean such "audio on demand files", offered by some websites, like this:

https://ondemand-mp3.dradio.de/file/...8_e4953176.mp3

"Open with Media Player" = Media Player starts, then "no connection to server", when I try to set a bookmark, then "invalid url" appears...

"Save on device" = Media Player starts, while tap on saved file.