In additon to elisolution's reply above, this also checks regardless of whether we are literally on the home web page (not just if the canonical was established or not). I tested this Option a little and so far as I am able to see, it really works as expected. Normally, be https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html