来源:https://blog.csdn.net/Honiler/article/details/89874052

解决办法
nginx配置修改:配置静态文件的映射

server
{
    listen 80;
    server_name www.xxx.com;   

    #忽略其他配置...

    location / {
        proxy_pass http://www.xxx.com:8012;
    }

    #----------------| 修改静态资源代理地址 |----------------start

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        proxy_pass http://www.xxx.com:8978;
    }

    location ~ .*\.(js|css)?$
    {
        proxy_pass http://www.xxx.com:8978;
    }

    #----------------| 修改静态资源代理地址 |----------------end
}