In additon to elisolution's answer earlier mentioned, this also checks whether we are actually on the house web page (not simply if the canonical was set or not). I analyzed this Resolution a little and in terms of I'm able to see, it works as envisioned. If not, please let me https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html