How to hide server details(Kestrel) in response headers for Function Hosted applications in .NET8

[Ashwani77-77]

I am working on .NET8 Azure Function in C# and I want to hide the Kestrel Server information from response headers.

We have migrated our application from (.NET6 in-process model to .NET8 isolated) and I have made a few changes in code to remove this server property from the response header.
I have added extensions property in host.json like this - -->
"extensions": {
"http": {
"customHeaders": {
"Server": ""
}
}
}
and also I have added a configuration in Program.cs like this .---> ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseKestrel(option => option.AddServerHeader = false);
})
It is working locally but when I am deploying it our function app is getting 500 Internal Server Error.
Also If we create a fresh new endpoint on .NET 8 isolated, then by default we don’t get any Server property in the response header.