I used the default Blazor Server template to create a Blazor app running in a Docker container. Everything worked fine until i added a SignalR Hub. I did all steps described in this Microsoft Tutorial. https://learn.microsoft.com/en-us/aspnet/core/blazor/tutorials/signalr-blazor?view=aspnetcore-7.0&tabs=visual-studio&pivots=server /counter and /fetchdata are working normal in a container but /index produces the following error output: (When starting not in a container everything works fine)
The Docker Log:
enter code here
https://pastebin.com/aE6wHQ6d