Possible null reference argument for parameter 'sid' in 'Task<bool> ILogoutTokenHandler.IsLoggedOutAsync(string issuer, string sid)'.

Possible null reference argument for parameter 'sid' in 'Task<bool> ILogoutTokenHandler.IsLoggedOutAsync(string issuer, string sid)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'sid' in 'Task<bool> ILogoutTokenHandler.IsLoggedOutAsync(string issuer, string sid)'.

Dereference of a possibly null reference.

'OpenIdConnectOptions.SecurityTokenValidator' is obsolete: 'SecurityTokenValidator is no longer used by default. Use TokenHandler instead. To continue using SecurityTokenValidator, set UseSecurityTokenValidator to true. See https://aka.ms/aspnetcore8/security-token-changes'

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)

Use IHeaderDictionary.Append or the indexer to append or set headers. IDictionary.Add will throw an ArgumentException when attempting to add a duplicate key. (https://aka.ms/aspnet/analyzers)