ZDF wrong audio track

[Hi-Fey]

When I download films or programmes from the German TV channel ZDF, the audio track with audio description (for the visually impaired) is always loaded. I have no option to change the audio track.
In addition, the loaded file is in *.webm format.

Hi-Fey

[Mona]

I have passed your report to the developer.

[Hi-Fey]

Any news?

[Mona]

There isn't an update regarding the audio issue yet, I will bring it to the developer again.