In additon to elisolution's reply above, this also checks whether we are actually on the house page (not simply whether the canonical was set or not). I examined this Alternative a tad and in terms of I am able to see, it works as expected. Normally, make sure you let me https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html