In additon to elisolution's respond to above, this also checks irrespective of whether we are literally on the home page (not just whether or not the canonical was established or not). I analyzed this solution somewhat and as far as I can see, it works as expected. In any other case, https://addons.prestashop.com/es/seo-posicionamiento-buscadores/31857-google-rich-snippets-automatico-json-ld-opengraph-seo.html