関連ワード:  nginx proxy http request to https    nginx proxy the plain http request was sent to https port    nginx proxy manager the plain http request was sent to https port    nginx proxy manager client sent an http request to an https server    nginx proxy_pass the plain http request was sent to https port    nginx reverse proxy the plain http request was sent to https port    nginx reverse proxy client sent an http request to an https server  
結果 : nginx proxy http request to https