In additon to elisolution's answer above, this also checks no matter if we are actually on the house page (not simply whether the canonical was set or not). I tested this Option a little bit and in terms of I'm able to see, it really works as expected. Otherwise, be sure https://addons.prestashop.com/es/seo-posicionamiento-buscadores/31857-google-rich-snippets-automatico-json-ld-opengraph-seo.html