Add support to Azure AD B2C for the on-behalf-of flow.
In order for a web API to call another downstream web API as the user, Azure AD B2C needs to support the OAuth on-behalf-of flow.
According to the following reference, this isn't supported in B2C: https://docs.microsoft.com/en-us/azure/active-directory-b2c/active-directory-b2c-apps#web-api-chains-on-behalf-of-flow
I also cannot find this feature on the Azure Roadmap.
Pahne, Andy (external) commented
I was kind of surprised to not find this in our POC project.