Express res.redirect not redirecting

I am having trouble using res.redirect() in express.

I have tried looking on other questions but the answers don't really cover my specific problem, or they at least aren't relevant enough.

app.get(/\d\w*/g, function (req, res, next) {

    urlCreator.findURL(req.originalUrl,function(smallURL){
       if (smallURL === "Small URL doesn't exist"){
           res.send(smallURL);
       }
       else {
            res.redirect(smallURL);
       }
   });

});

When the res.redirect() within the else block gets reached, I get this in my browser (screenshot below) instead of redirecting to whatever the page desired. The format of smallUrl is for example "www.facebook.com"

Browser response

Am i missing something obvious as to why the browser will not simply redirect and displays this instead?

via tophergd