设备：https://www.usr.cn/Product/176.html

server
{
    listen 80;
    server_name xxx.webman.xxx;
    
    index index.html;
    root /server/webman/public;
    
    location / {
        proxy_http_version 1.1;
        proxy_set_header Connection "keep-alive";
        proxy_set_header Host $http_host;
        
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Real-Scheme $scheme;
        
        if ($uri = /) {
            proxy_pass http://127.0.0.1:8787;
            break;
        }
        
        if (!-e $request_filename) {
            proxy_pass http://127.0.0.1:8787;
        }
    }
    
    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|js|css)$
    {
        expires      30d;
        error_log /dev/null;
        access_log /dev/null;
    }
    
    access_log    /dev/null;
    error_log    /server/logs/webman.error.log;
}

class AccessControl implements MiddlewareInterface
{
    /**
     * @param Request $request
     * @param callable $next
     * @return Response
     */
    public function process(Request $request, callable $next) : Response
    {
        $response = $request->method() == 'OPTIONS' ? response('') : $next($request);
        $response->withHeaders([
            'Access-Control-Allow-Origin' => '*',
            'Access-Control-Allow-Credentials' => 'true',
            'Access-Control-Allow-Headers' => 'Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With,Origin',
            'Access-Control-Allow-Methods' => 'GET,POST,PUT,DELETE,OPTIONS',
        ]);
        return $response;
    }
}