Undefined property: Config\App::$cookieDomain

[chalsen]

VENDORPATH\myth\auth\src\Authentication\AuthenticationBase.php at line 230

223 $response = service('response');
224
225 // Create the cookie
226 $response->setCookie(
227 'remember', // Cookie Name
228 $token, // Value
229 $this->config->rememberLength, // # Seconds until it expires
230 $appConfig->cookieDomain,
231 $appConfig->cookiePath,
232 $appConfig->cookiePrefix,
233 $appConfig->cookieSecure, // Only send over HTTPS?
234 true // Hide from Javascript?
235 );
236 }
237