unable to get local issuer certificate

I'm using the tester to test against an internal ADFS server with internal https certificates. I was able to overcome the “unable to get local issuer certificate" error by adding the following environment variable :

-e NODE_TLS_REJECT_UNAUTHORIZED=0

docker run --name oidc-tester -p 8080:80 -e EXTERNAL_OWN_URL=http://IP:8080 -e NODE_TLS_REJECT_UNAUTHORIZED=0 registry.gitlab.com/guenoledc-perso/idp-oidc-tester:latest