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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 herehttps://pastebin.com/aE6wHQ6d

rubgra
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  • The answer in https://stackoverflow.com/questions/60408442/how-to-run-startasync-connection-of-signalr-blazor-client-in-docker-image helped me. – rubgra Jan 17 '23 at 15:27

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