1 
http://***:8280/tt-rss/js/Feeds.js?1603797680:378:15
onComplete@http://***:8280/tt-rss/js/common.js?1603797680:24:40
respondToReadyState@http://***:8280/tt-rss/lib/prototype.js?1603797680:1827:62
onStateChange@http://***:8280/tt-rss/lib/prototype.js?1603797680:1756:31
onStateChange@[native code]

Fresh new Docker droplet @DigitalOcean and straght out of the box I get this right after login. I can open preference-section and it works. I can add feeds but they do not work.

On my local machine everything works just fine.

2

I found a reason. PiHole was preventing some JS loading. I really don’t know why it works locally though!