JupyterHub z2jh CORS issue

JupyterHub Zero to JupyterHub on Kubernetes
1

Hello,

Trying to get working JupyterHub Lab notebook in Z2JH (v1.1.1).
Getting CORS error while trying to load Lab extensions:

cors1
cors12231×637 184 KB

JupyterHub is running in AWS EKS cluster within VPC.
To connect to JupyterHub we use LoadBalancer, which is being created while deploying JupyterHub helm chart, applying AWS annotations (nlb, timeout, cert). Then creating rule in Route53.

Assuming, that I need to add headers or some JupyterHub setting allowing CORS, but not sure exactly where to do this.

Thanks!