Nginx位置匹配问题

Question

Nginx代理节点服务器，提供常规的http请求和websockets。

对/download/<some directory>的GET请求正在落到最后/位置块。

NGINX配置如下所示：

server {
  listen 80;

  server_name example.com www.example.com;
  return 301 https://$server_name$request_uri;
}

server {
  listen 443 ssl;

  server_name example.com www.example.com;
  ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
  ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;


  location ^~ /.well-known {
    alias /var/www/example/.well-known/;
    allow all;
  }

  root /var/www/example/;

  location /api {
    proxy_set_header Host $server_name;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-For-Proto https;
    proxy_pass http://localhost:3000;
  }

  location /upload {
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_http_version 1.1;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;
    proxy_pass http://localhost:3000/upload;
  }

  location /download {
    proxy_set_header Host $server_name;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-For-Proto https;
    proxy_pass http://localhost:3000;
  }

  location / {
    try_files $uri $uri/ /index.html;
  }
}

如何使用以下格式正确匹配请求？

/download/<some directory>