[eks-v2-alpha] How to access the OIDC issuer ID

[nosammai]

I am using the CDK typescript library and I need to access the OIDC issuer URL on a cluster but without the https:// in front for use in IAM roles elsewhere in my stack. It looks like clusterOpenIdConnectIssuerUrl is a token that is resolved after the stack is deployed, so I can't use string splitting on it to just grab the part that I need. What is the best way to access that information?