After support expires, You should use the module without any restrictions. You can increase your support accessibility at any time you need it. To employ these polyfills, just increase HTML boolean logic to put them, When the browser is below the need IE version. Example code is: If the customer https://checkbookmarks.com/story4940448/prestashop-popup-on-exit-page-on-browser-tab-close-event-things-to-know-before-you-buy