Azure function API URL not working with Azure Key secrets

Question

Hello I am using the Azure key vault secrets and the URL is not working. I keep getting an error when trying to run the function via URL. When I run the function in the portal it works and it prints out the data. But when I copy the func URL I keep getting an error.

I assume the problem is with the Azure Key Vault. Since I have the same code with environmental variables and that URL func code works.

Can anyone help me with this matter?

Thanks,

Josh