In additon to elisolution's solution previously mentioned, this also checks whether we are actually on the house webpage (not just if the canonical was set or not). I examined this Resolution a bit and so far as I'm able to see, it really works as expected. If not, remember to let https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html