[Solved] TelerikLoaderContainer generating errors on shutdown

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FIMS Computing Services FIMS - UWO
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FIMS Computing Services FIMS - UWO asked on 17 Mar 2026, 01:48 PM

Hi,

Is anyone else seeing the following errors generated whenever a Blazor page is closed

[09:31:28 ERR] Unhandled exception in circuit 'SxXtedGLjUhdy-eMLBc7qIlbtXfClIJFypLcSzO9PZs'.
Microsoft.JSInterop.JSDisconnectedException: JavaScript interop calls cannot be issued at this time. This is because the circuit has disconnected and is being disposed.
   at Microsoft.AspNetCore.Components.Server.Circuits.RemoteJSRuntime.BeginInvokeJS(JSInvocationInfo& invocationInfo)
   at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, JSCallType callType, CancellationToken cancellationToken, Object[] args)
   at Microsoft.JSInterop.JSRuntime.InvokeAsync[TValue](Int64 targetInstanceId, String identifier, JSCallType callType, Object[] args)
   at Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(IJSRuntime jsRuntime, String identifier, Object[] args)
   at Telerik.Blazor.Components.Common.Loader.ComponentLoaderContainer.DisposeAsync()
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.<>c__DisplayClass105_0.<<Dispose>g__HandleAsyncExceptions|0>d.MoveNext()

Claude thinks it is because the ComponentLoaderContainer is missing a try/catch expression around the JSInterop DisposeAsync() call?

Thanks,

Charlotte

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Dimo
Telerik team
answered on 17 Mar 2026, 01:51 PM

Hi Charlotte,

This issue should be fixed in our coming release next week.

Regards,
Dimo
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