nginx https 配置參考，開啟https后請求400錯誤

listen 443 ssl;                    # listen 443; (這里使用443 ssl這種方式，ssl on的方式可能會https訪問400 bad request)
                                          # ssl on;
ssl_certificate pem;
ssl_certificate_key key;
ssl_session_timeout 5m;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;