'Blazor with .NET6 add Response Headers

I'm trying to sort out the OWASP recommendation in my Blazor Web Assembly project.

Usually, in other .NET Core projects I added this code

app.Use((context, next) =>
{
    context.Response.GetTypedHeaders().CacheControl =
        new Microsoft.Net.Http.Headers.CacheControlHeaderValue()
        {
            MustRevalidate = true,
            NoCache = true,
            NoStore = true,

        };

    context.Response.Headers.Add("X-Content-Type-Options", "nosniff");
    context.Response.Headers.Add("Content-Security-Policy", 
        "default-src 'none'; " + "script-src 'self'; " + 
        "connect-src 'self'; " + 
        "img-src 'self'; " + 
        "style-src 'self'; " +
        "base-uri 'self'; " + 
        "form-action 'self'; " + 
        "frame-ancestors 'none';");

    return next.Invoke();
});

The first problem is app.Use() doesn't exists. Also, if I run the OWASP tool, I have a quite long list of issues.