No Exception information shown

[Apflkuacha]

I just created a project with the new .NET8 Template (Interactive Mode: Server) and added that it throws an Exception on button pressed. Just added throw new Exception("test"); The result is that the page doesn't respond any more after I clicked the button and no information about an Exception is shown.

On the original .NET8 Template (without Blazor) a Message is shown like this: An unhandled error has occurred. Reload How to show such a Message in MudBlazor? That should be included in the template.