Validates OAuth 2.0 auth metadata as defined by https://spec.matrix.org/v1.17/client-server-api/#get_matrixclientv1auth_metadata is compatible with Element's OAuth/OIDC flow
json object
valid issuer config
Error - when issuer config is not found or is invalid
Validates OAuth 2.0 auth metadata as defined by https://spec.matrix.org/v1.17/client-server-api/#get_matrixclientv1auth_metadata is compatible with Element's OAuth/OIDC flow