proxy_set_header Connection "upgrade";
proxy_set_header Host $http_host;
- proxy_pass http://localhost:4000;
+ # this is explicitly IPv4 since Pleroma.Web.Endpoint binds on IPv4 only
+ # and `localhost.` resolves to [::0] on some systems: see issue #930
+ proxy_pass http://127.0.0.1:4000;
client_max_body_size 16m;
}