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App crash on docker stop (incl. traefik) #33

@jochenwezel

Description

@jochenwezel

after service docker stop (for guacamole+traefik containers), following critical exception is thrown:

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************** Ausnahmetext **************
System.ArgumentNullException: Value cannot be null. (Parameter 'json')
at System.Text.Json.ThrowHelper.ThrowArgumentNullException(String parameterName)
at System.Text.Json.JsonDocument.Parse(String json, JsonDocumentOptions options)
at GuacamoleClient.WinForms.MainForm.GetGuacamoleAuthTokenAsync() in D:\GitHub-OpenSource\GuacamoleClient\GuacamoleClient-WinForms\MainForm.cs:line 804
at GuacamoleClient.WinForms.MainForm.NavigationCompleted(Object sender, CoreWebView2NavigationCompletedEventArgs e) in D:\GitHub-OpenSource\GuacamoleClient\GuacamoleClient-WinForms\MainForm.cs:line 255
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
at System.Reflection.MethodBaseInvoker.InvokeDirectByRefWithFewArgs(Object obj, Span`1 copyOfArgs, BindingFlags invokeAttr)

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Microsoft.Web.WebView2.Core
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System
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Speicherort: C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.24\System.IO.MemoryMappedFiles.dll

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