Azure AD B2C issuer claim support - mattchenderson/microsoft-identity-web GitHub Wiki
Azure AD B2C policies can be customized to emit the issuer claim in two formats: https://<domain>/<tenant>/v2.0/ and https://<domain>/tfp/<tenant>/<userFlow>/v2.0/.
Microsoft Identity Web follows the guidance from Azure AD B2C and only supports an issuer in https://<domain>/<tenant>/v2.0/ format.
- In the menu of the Azure AD B2C tenant overview page, select User flows, and then select the desired user flow.
- On the user flow page, under Settings, select Properties.
- Under Token compatibility settings, set Issuer (iss) claim to
https://<domain>/<tenant>/v2.0/format.
