Yes, when you refresh the cart page and if you add a product in cart, cart details are despatched on information tables only if cart facts in configuration is enabled. The chosen canonical URL absolutely needs to be crawlable. This suggests it shouldn’t be blocked inside the robots.txt file or https://addons.prestashop.com/de/seo-suchmaschinenranking-optimization/30904-automatische-hreflang-tags-und-kanonische-tags-seo.html