Blazor loses token when published but not locally.

[MikeBrownCygnia]

Hello,

I am currently using the tutorial here https://docs.microsoft.com/en-us/azure/active-directory/develop/tutorial-blazor-server

The fetch data script for GraphApi / Mail.Read works perfectly on my local machine, howwever when I publish, it shows the data very quickly then seems to refresh, and the token becomes unauthorized, losing the data on page almost instantly.

I assume this may be due to the lifecycle of the Blazor page, and how this interacts with AzureAd differently with a local build. Any idea on how to persist this?

[MikeBrownCygnia]

I can confirm that my var token = ........ line returns blank in Azure, when it returns with a value on localhost.

This is the response to the following call to Graph Api

{"error":{"code":"InvalidAuthenticationToken","message":"CompactToken parsing failed with error code: 80049217","innerError":{"date":"2021-07-29T14:02:06","request-id":"a04de0df-487c-4340-912d-a8acd838ea86","client-request-id":"a04de0df-487c-4340-912d-a8acd838ea86"}}}

So the error is certainly with the token generation part when in Azure.