Nord\Lumen\Cors\Contracts\CorsService::isCorsRequest PHP Méthode

    public function isCorsRequest(Request $request);

 /**
  * Run the request filter.
  *
  * @param  Request $request
  * @param  Closure $next
  *
  * @return mixed
  */
 public function handle(Request $request, Closure $next)
 {
     if (!$this->service->isCorsRequest($request)) {
         return $next($request);
     }
     if ($this->service->isPreflightRequest($request)) {
         return $this->service->handlePreflightRequest($request);
     }
     return $this->service->handleRequest($request, $next($request));
 }