This module impelements Google Tag Manager on your site.

How to Enable?

Configuration :

{
  "tag_manager_container_id": "GTM-XXXXXXXX"
}

Code of the module :

// Custom Javascript
(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer',"$->[tag_manager_container_id]");

⚠️ Do not edit the code if you do not know what do you do.