nginx rewrite導致post數據丟失

http://www.tuicool.com/articles/iYfiya

    server {
          listen       80;
          server_name  abc.com www.abc.com test.abc.com www.test.abc.com;
          location = /login/quick/QQ {
            proxy_pass http://www.test.bbb.com/login/quick/QQ;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          }
          location / {
            rewrite ^/(.*)$ http://www.test.bbb.com/$1 last;
          }
    }