While I was browser around http://radio.garden, I noticed the tiles were no longer loading… I checked in the developer tools and saw 4 requests were stuck, causing the load queue to be blocked.
As far as I can see there is no timeout set currently for requests in Cesium, which means a browser like Chrome will happily wait 5 minutes for a request to complete.
I am wondering if it might be an idea to implement a sensible default time out for resource loading – say 30 seconds… or 15 even…