Sitefinity Load Custom Scripts Only in Designer Mode

gistfile1.txt

<script language="C#" runat="server">
  protected void Page_PreRender(object sender, EventArgs e)
  {
    if (!Telerik.Sitefinity.Services.SystemManager.IsDesignMode)
    {
      var scriptManager = System.Web.UI.ScriptManager.GetCurrent(Page);
  
      if (scriptManager == null) return;
  
      scriptManager.Scripts.Add(new ScriptReference { Path = "https://maps.googleapis.com/maps/api/js?key=AIzaSyA2OGXl_YKdtBFvOSb7sxyGvf9ePBaipSA&v=3.exp&sensor=false" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerwithlabel/1.1.9/markerwithlabel/src/markerwithlabel.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/bootstrap.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/modernizr-2.6.2.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/script.bottom.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/script.top.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/jquery.elastic.source.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/geoPosition.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/vendor/jquery.cookie.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/wafd-google-maps.min.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/conversation-form.js" });
      scriptManager.Scripts.Add(new ScriptReference { Path = "~/Sitefinity/WebsiteTemplates/WAFD/js/scripts.min.js" });
    }
  }
</script>