我已经解决了这个问题.这是Nginx的错误

I've solved this. It's a Nginx bug

此问题已在Nginx 1.11中修复.因此，解决方案只是更新到NGINX 1.11(当前为主线).

This issue was fixed in Nginx 1.11. So, the solution is just to update to NGINX 1.11 (mainline currently).