preferred_username claim from Azure AD v2 endpoint not available in the HttpContext.User.Identity.Claims collection

I have tried to set the default claim mapping off using the following line of code, and this shows all the other claims that AAD sends in the id_token, but preferred_username is still not there.

JwtSecurityTokenHandler.DefaultMapInboundClaims = false;

How can I get the value of preferred_username in the claims collection?

[TiagoBrenck]

After analyzing the problem using this sample, we were expecting the preferred_username to be in the bearer token, but it is not since the bearer token is the access token acquired on the client side. The access token doesn’t have the claim preferred_username, thus we wont see it in the claims collection as expected.

I am closing this issue because the result is as expected.

[GeoK]

Hi @TiagoBrenck - nothing has changed except that oid, sub, and tid claims types are no longer mapped to default claim types, which is as expected. The preferred_username claim is still there and accessible via HttpContext.User.Identity.Name.