nginx Reverse Proxy

nginx.conf

events {

}

http {
    error_log /etc/nginx/error_log.log warn;
    client_max_body_size 60m;

    include mime.types;

    server {
        server_name _;

        location / {
            try_files $uri $uri/ @webpack_dev_server_proxy;
        }

        location @webpack_dev_server_proxy {
            proxy_pass http://webpack-dev-server:9000;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $remote_addr;
            proxy_intercept_errors on;
            recursive_error_pages on;
            error_page 404 = @rewrite_proxy;
        }

        location @rewrite_proxy {
            rewrite ^/(.*)$ /index.html?$1 break;
            proxy_pass http://webpack-dev-server:9000;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $remote_addr;
        }
    }

    server {
        include /etc/nginx/mime.types;
        server_name prototype.*;

        root /home/www-data/prototype;
        index template.html;
    }
}