In additon to elisolution's reply over, this also checks no matter whether we are literally on the home web page (not merely whether or not the canonical was established or not). I examined this solution a tiny bit and in terms of I'm able to see, it really works as predicted. https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html