http headers - Nginx: $scheme vs $http_x_forwarded_proto

Question

I wonder what is difference between them. In my case I want to redirect all http request https, so I want to add some config like this:

if ($scheme = 'http')
{
  return 301 https://$host$request_uri;
}

But unfortunately it's just not working, even I do access it with http not https. When I change to use $http_x_forwarded_proto, its just working

question from:https://stackoverflow.com/questions/66060605/nginx-scheme-vs-http-x-forwarded-proto

Answer 1

Waitting for answers