标签：inf src error 技术 href and stream self image
https://serverfault.com/questions/859667/configure-nginx-how-to-handle-500-error-on-upstream-itself-while-nginx-handle
configure-nginx-how-to-handle-500-error-on-upstream-itself-while-nginx-handle
原文地址：https://www.cnblogs.com/yuanjiangw/p/11764191.html
