chaper2 , shadow project - CameraHelper doesn't work

[seunguri]

CameraHelper position, rotation is fixed at original point
I replaced it to SpotLightHelper, and it works

const spotLightCameraHelper = new THREE.CameraHelper(spotLight.shadow.camera);
spotLightCameraHelper.visible = true;
scene.add(spotLightCameraHelper);

const spotLightHelper = new THREE.SpotLightHelper(spotLight);
spotLightHelper.visible = true;
scene.add(spotLightHelper);

[seunguri]

if this repository not related to lesson project, please delete this issue