sudara/alonetone

<% if tracking_id = Rails.configuration.alonetone.google_analytics_tracking_id %>
  <!-- Global site tag (gtag.js) - Google Analytics -->
  <script async src="https://www.googletagmanager.com/gtag/js?id=<%= tracking_id %>"></script>
  <script>
    window.dataLayer = window.dataLayer || [];
    function gtag(){dataLayer.push(arguments);}
    gtag('js', new Date());

    gtag('config', '<%= tracking_id %>');
  </script>
<% end %>