Around the configuration of this web page, you merely have to have to select the choice "Custom URL" and write the personalized canonical URL you need, you could established a special URL for every language within your store (multilingual store) The JS redirect seems like some a messy scenario, but https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html