nginx反向代理阿里云OSS图片显示预览

    location /    {       
     #阿里云OSS  Bucket 域名        
     proxy_pass https://*********.aliyuncs.com;        
     proxy_set_header Host *********.aliyuncs.com;        
     proxy_set_header X-Real-IP $remote_addr;        
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;        
     proxy_set_header REMOTE-HOST $remote_addr;        
     proxy_set_header Upgrade $http_upgrade;        
     proxy_set_header Connection $connection_upgrade;        
     proxy_http_version 1.1;        
     #proxy_hide_header Upgrade;        
     #如果不加这个图片会变成下载而不是直接显示        
     proxy_hide_header "Content-Disposition";        
     add_header "Content-Disposition" "inline;";        
     add_header X-Cache $upstream_cache_status;        
     #Set Nginx Cache        
     set $static_fileIOVLazrh 0;        
     if ( $uri ~* "\.(gif|png|jpg|css|js|woff|woff2)$" )        
     {            
     set $static_fileIOVLazrh 1;            
     expires 1m;            
     }       
     if ( $static_fileIOVLazrh = 0 )        
     {        
     add_header Cache-Control no-cache;       
      }    
      }