return new WebHostBuilder()
            .ConfigureKestrel((context, options) =>
            {
                if (!string.IsNullOrEmpty(aspEnv) && !string.Equals(aspEnv,"Development"))
                {
                    options.ListenAnyIP(443,opt => opt.UseHttps("myfile.pfx","mypass"));
                }
            })

app.UseForwardedHeaders(new ForwardedHeadersOptions
                {
                    ForwardedHeaders = ForwardedHeaders.XForwardedFor | ForwardedHeaders.XForwardedProto
                });