Add the class "no-js" or "js" if JavaScript is enabled or not (Contao CMS)
This extension adds the default no-js class. It replaces the class no-js with js if JavaScript is enabled.
<html class="no-js">
...
</html>Add "lionel/classjs": "~3.0" in the composer.json file.
Add new LionelM\ClassJsBundle\LionelMClassJsBundle(), in the app/AppKernel.php file.
Run the command php composer.phar update classjs.