nginx给有空格的网址提供400个错误请求

Question

我有一个nginx代理请求到Ubuntu框后端的node.js web应用程序。对于带有url空格的api.example.com请求，会收到400错误的请求错误。认为问题的代码行是：

        proxy_pass http://127.0.0.1:3002$uri$is_args$query_string;

然而不确定如何重写它。

这是/ etc / nginx / sites-available / default中的站点配置的外观：

server {
    listen 80;
    server_name example.com;
    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
     }
}
server {
    listen 80;
    server_name api.example.com;
    location / {
        proxy_pass http://127.0.0.1:3002$uri$is_args$query_string;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
     }