I'm using the Spotify webplayer on Fedora, Chrome version 58.
When I try to browse the 'Genres & Moods' Section, only the first 20 load. When I scroll down to load more, the spinner shows up and then nothing happens.
Digging around with the Chrome Developer Tools, I noticed this friendly little chap:
My paranoia has, so far, stopped me from fiddling with the Content Security Policy [CSP] settings to get it working again, but I can't help feeling that making my browser less secure is not the correct way of getting 'Genres & Moods' to work.