方式1、try_files

        location /bank/h5 { 
                try_files $uri $uri/ @backend;
        }

       location @backend {
                rewrite ^/(.*)$ https://bank.abc.com;
        }

方式2、rewrite
此方式出现苹果手机和苹果浏览器无法跳转的情况

       location /bank/h5 {
          rewrite ^/bank/h5(.*)$ https://bank.abc.com\#/$1 permanent;
       }