Spotify web unable to play music

That's right - it says "Audio file unavailable" when I press Play. DevTools shows a red block entry for the domain clrtpod.com, and when I select "Open in new tab" on that one I get the below expected prompt page. That's the pain of it - the blocking of web page elements that are loaded in the background is not visible to the end user. I've suggested to Cato that they should develop a browser extension that would popup a suitable alert when this happens, but they are yet to take that idea and run with it.