Exit pop up: a module for Drupal 8 to convert the exiting users of your site

There are a lot of website full of call to action that instruct people to click a link, visit a page, buy something, register in a mailing list and so on, even when people exit from those sites. It's a nightmare, but might I ever omit this feature on my Drupal 8 site? Certainly not, so I show you how to add this pop up to your site, installing and configuring Exit Pop UP Module for Drupal 8. And how putting just a little Javascript, it is possible to adapt the advert to the user language.