Why does not url recognize upper case

Why does not url recognize upper case

your text on the site would be set to > text-transform: uppercase; I am not sure about how the url is displayed but more than likely it is somehow set to text-transform: lowercase; and has more to do with your browser and not your website ? maybe wrong on that

the picture is too small I cant see what 's on the url tab

I found the problem
(Localization code)