Arabic URL route using express web framework?

I have a problem getting express to render a page using an arabic url route:

app.get('/شقق-في-لندن', function(req, res){
    res.render('apartments');
});

when I try access this using the browser localhost:5000/شقق-في-لندن i get an error saying not found.

Cannot GET /%D8%B4%D9%82%D9%82-%D9%81%D9%8A-%D9%84%D9%86%D8%AF%D9%86

via Brain Young