Open Graph Protocol is often a schema markup (It is additionally known as a vocabulary) developed by Fb in order to combine and relate Website pages and generate its rich representation within the social graph. In exercise, Open Graph enables Fb's Like You've got a certain aim in mind for https://www.presta-addons-modules.com/en/free-modules/prestashop-popup-on-exit-page-on-browser-tab-close-event.html