# File lib/gravatarify/base.rb, line 68
      def self.gravatar_host(context, str_hash, secure = false)
        use_https = secure.respond_to?(:call) ? secure.call(context) : secure
        "#{use_https ? 'https' : 'http'}://#{Gravatarify.subdomain(str_hash)}gravatar.com"
      end