How to disable redirect from http to https?

Question

CentOS

It costs centos, ispmanager, nginx
has an ssl certificate,
but I can’t open the site via http protocol, it immediately redirects to https version of
htaccess is empty

Answer 1

sort of found it)
return 301 https://$host$request_uri;

Answer 2

And telnet on the 80th port passes? and what does it send back? Also a redirect?
Well, besides htaccess, I would like to look at the nginx configuration.
If the site has ever been opened via https, then most modern browsers automatically start opening via https instead of http when it is requested.