Its a shame shopify does not have a proper app to redirect url according to browser language, my site is made with sub domains such as fr. de. ar. according to languages. only app we have in shopify got issues such as if we set up to redirect fr.example.com to french language even if french language users viset to a different page (ex: fr.example.com/about) still redirect to given url fr.example.com, also if they change there mind and chaneg to a different language of the store such as de.example.com still redirect back to fr.example.com. There is a good redirect app geolizer without any issues but it redirect according to location not the browser language,
So last any body knows any good cording we can do in our theme to redirect according to browser language without any issues?