nginx的url斜杠問(wèn)題？

配置文件

server {
    listen 80;
    server_name localhost:80;

    root /usr/html;
    index index.html;

    location /favicon.ico {
        log_not_found off;
    }

    location /aria2/ {
        proxy_pass http://localhost:6800/;
    }

    location /dl {
        root /aria2;
        autoindex on;
        autoindex_exact_size off;
        autoindex_localtime on;
        expires 30d;

    }
}

運(yùn)行在docker容器里面，對(duì)外端口33333，現(xiàn)在問(wèn)題是訪問(wèn)http://127.0.0.1:33333/dl ，會(huì)自動(dòng)301跳轉(zhuǎn)到80端口：http://127.0.0.1/dl/ ，按搜到的方法都無(wú)法解決
還有如果配置成

    location /aria2 {
        proxy_pass http://localhost:6800/;
    }

就會(huì)404

192.168.6.122 - - [15/Mar/2018:05:15:48 +0000] "POST /aria2/jsonrpc HTTP/1.1" 404 0 "http://192.168.6.235:33333/" "Mozilla/5.0 (Windows NT 6.1; rv:51.0) Gecko/20100101 Firefox/51.0" "-"

請(qǐng)問(wèn)要如何解決？