Lowercasing URLs in OIDC discovery endpoint causes compatibility issues with custom thirdparty SSO

[gaurpulkit]

In the get_oidc_discovery_info function, while doing npath = NormalisedURLPath(issuer), it converts the URL to lowercase, resulting in an error for Duo SSO's OIDC discovery endpoint as the lowercased URL doesn't work.

I removed the lower method from this line

def normalise_url_path_or_throw_error(input_str: str) -> str:
    input_str = input_str.strip().lower()

and then it started working fine.