Cannot stream url to sonos illegal mime type

[StefanW86]

Hello,
i am trying mini media player and want to add some shortcuts. This works well for my arylic/linkplay devices, but not with sonos.

I got the error message:

media_player/play_media. Error calling SonosMediaPlayerEntity._play_media on media_player.terrasse: UPnP Error 714 received: Illegal MIME-Type from 192.168.178.167

if i remove type: music and add data: i got the following error message that media_content_type is missing.

Fehler beim Aufrufen des Diensts media_player/play_media. required key not provided @ data['media_content_type']

So i cannot stream to my sonos devices. My full code
type: custom:mini-media-player entity: media_player.terrasse shortcuts: columns: 2 buttons: - name: Drivers Radio type: music id: https://edge06.streamonkey.net/drivers-radio - name: Radio Energy type: music id: https://edge96.streamonkey.net/energy-nrw/stream/mp3?aggregator=shorty - name: Bollerwagen id: https://ffn-stream19.radiohost.de/radiobollerwagen_mp3-192 data: media_content_type: audio/mpeg - name: Test data: media_content_id: media-source://radio_browser/961e7ac2-0601-11e8-ae97-52543be04c81 media_content_type: audio/mpeg sound_mode: icon toggle_power: true info: short