[ 'request' => [ // !!! insert a secret key in the following (if it is empty) - this is required by cookie validation 'cookieValidationKey' => 'cutler_UTVb6_cw5UgJ4jukRO3ftYIxGBUfTJJw', ], 'session' => [ 'name' => '_cutlerFrontendSessionId', // unique for frontend 'savePath' => __DIR__ . '/../runtime', // a temporary folder on frontend ], ], ];