Websockets don't work behind nginx

🚧Setup❓Question

Hi! I’ve installed immich and put it behind nginx. I have these lines in my

location

location

config:

proxy_http_version 1.1;
proxy_set_header   Upgrade    $http_upgrade;
proxy_set_header   Connection "upgrade";
proxy_redirect     off;

proxy_http_version 1.1;
proxy_set_header   Upgrade    $http_upgrade;
proxy_set_header   Connection "upgrade";
proxy_redirect     off;

but despite that it still shows “Server Offline” in bottom-left corner and websocket requests return 400. What could be the issue here?