/**
  * Register the cors function and set defaults
  *
  * @param Application $app
  */
 public function register(Container $app)
 {
     $app["cors.allowOrigin"] = "*";
     // Defaults to all
     $app["cors.allowMethods"] = null;
     // Defaults to all
     $app["cors.maxAge"] = null;
     $app["cors.allowCredentials"] = null;
     $app["cors.exposeHeaders"] = null;
     $app["cors"] = $app->share(function ($app) {
         return new Cors($app);
     });
 }