Nginx - redirect http to https

gistfile1.txt

server {
    listen 80;
    server_name www.domain.com domain.com;

    # redirects both www and non-www to ssl port with http (NOT HTTPS, forcing error 497)
    return 301 http://domain.com$request_uri;
}

server {
    listen 433 ssl http2 default_server;
    listen [::]:443 ssl http2 default_server;

    server_name domain.com;
    error_page 497 https://domain.com$request_uri;

    include snippets/ssl-domain.com.conf;
    include snippets/ssl-params.conf;

    # other vhost configuration
}