Redirect from Http to Https in Owin + OAuth + ExternalLogin

In the Host where my application is hosted, it uses ARR to redirect all pages to Https .

The problem is that in the way that the code for asp.net mvc is configured, it means that the request is http , even though it is https .

When I see the URL that goes to Google authentication it looks like this:

&redirect_uri=http%3A%2F%mydomain.com\signing-google

So I'm trying to redirect to Google by changing "on hand" to https .

I've tried this:

 public class ChallengeResult : HttpUnauthorizedResult
{
   ...

    public override void ExecuteResult(ControllerContext context)
    {
        var properties = new AuthenticationProperties { RedirectUri = RedirectUri };
        if (UserId != null)
            properties.Dictionary[XsrfKey] = UserId;

        var owin = context.HttpContext.GetOwinContext();

        owin.Request.Scheme = "https"; //hotfix

        owin.Authentication.Challenge(properties, LoginProvider);
    }
}

and this:

 app.UseGoogleAuthentication(new GoogleOAuth2AuthenticationOptions()
            {
                ClientId = Secrets.GoogleClientId,
                ClientSecret = Secrets.GoogleClientSecret,
                Provider = new GoogleOAuth2AuthenticationProvider()
                {
                    OnApplyRedirect = async context =>
                    {
                        string redirect = context.RedirectUri;

                        redirect = redirect.Replace("redirect_uri=http", "redirect_uri=https");
                        context.Response.Redirect(redirect);
                    }
                }
            });

The two forms work and Google can redirect to my application again, however by the time I get the user data it returns null .

 public async Task<ActionResult> ExternalLoginCallback(string returnUrl)
    {
        if (string.IsNullOrEmpty(returnUrl))
            returnUrl = "~/";

        var loginInfo = await AuthenticationManager.GetExternalLoginInfoAsync();
        if (loginInfo == null)
        {
            //sempre retorna null se eu mudo de http para https "na mão"
        }

I tried to see the implementation of the GetExternalLoginInfoAsync() method, but I did not find out why I always return null when I do this workaround .