If you would like set a personalized canonical URL for a specific product or service, group, CMS, company or supplier web site, then go to the configuration of the webpage, select the option "Customized URL" and write the customized canonical url of the preference. The JS redirect appears like a https://www.presta-addons-modules.com/en/opencart-seo-automatic-google-rich-snippets-json-ld-integration-opengraph-twitter-tags-schemaorg.html