[apple iPhone] volume control issue in lock screen with chrome cast.

[Amedeo88]

Once i connect spotify with chromecast everything works.
But from the lockded screen i can't control the volume! just the play/pause button and the skip next/previous song control are working!

Instead once i unlock the phone entering in spotify app i can control the volume too, but only opening the device control and it's a little bit annoying.
In previous version of the app all the lock screen controls worked well, please solve this problem! 

[eedfwChris]

This isn’t just a Spotify issue. Either iOS changed this part of their APIs and a bunch of apps are broken or it’s now one more half baked cross device compatible feature Apple has introduced that they don’t care to fix because they want you to buy an AppleTV which mind you has no volume control capabilities.