Auth0-aspnetcore-authentication "UserRefreshToken = true;" is not refreshing tokens in Blazor Server

[jdbahnick]

@andrea.chiarelli The access token is used for the API that is hosting the hub connection for a chat client, which is not in a shared domain. Per .NET documentation, hub connections do not refresh access tokens and the logic for doing so must be provided.

I believe this is my issue here:

@rueben.tiow

(2) Custom Logics
A customer has a custom logic that handles refresh tokens outside of our SDK.
The SDK handled the login flow and saved the first refresh token. This refresh token was reused and rotated somewhere else without letting the SDK know that. As a result, the SDK reused the first refresh token, and all the following family tokens were invalidated.

I confirmed in the Auth0 logs that the access token is being refreshed automatically.

So my question now is, how do I properly get to the access token? A hub connection requires a delegate that returns a string (access token). What can I tap into so that I can detect when a refresh occurs so I can keep the access token for my hub connection up to date? I tried adding an event handler to AuthenticationStateProvider.AuthenticationStateChanged, but it appears that this is not firing for token refreshes.