Although Gary Illyes, a Google analyst, thinks that search engines may perhaps depend less on hreflang and a lot more on automatic language detection Later on, for now, the tag is our best guess.  The JS redirect sounds like a certain amount of a messy scenario, but to answer your https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html