February 28, 2018
Spotify Web Player doesn't work on Safari anymore
That’s really it, not much more to say. If you want to listen to Spotify without downloading the App, using it via Web Player instead, you can no longer do it on Safari and you’ll have to use Chrome, Firefox or any other browser.
No word on whether or not we can expect an update to fix this problem, until then, it seems like Safari is doing everything so to drive users away from it.