In additon to elisolution's answer earlier mentioned, this also checks whether or not we are literally on the home webpage (not just whether or not the canonical was established or not). I tested this Resolution somewhat and so far as I am able to see, it really works as expected. Usually, https://addons.prestashop.com/de/seo-suchmaschinenranking-optimization/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html