Nginx 配置http自动跳转到https

[shell]

server {
listen 80;
server_name my.domain.com;
return 301 https://$server_name$request_uri;
}

server {
listen 443 ssl;
server_name my.domain.com;

[….]
}

[/shell]

问题：

①跳转后Chrome地址栏显示叹号

解决办法：