Can't make a request twice

So,I've set up this route which gets JSON data from an internal API and displays it.The first time I visit the route I get the correct JSON data but when I refresh the page I get an error and the page just stucks loading.Any ideas?
Note: I use request-promise

app.get('/',function(req,res){
var options = {
//Here I initiate the API call.I actually have a url here.
uri: '',
json: true   
};

request(options)
    .then(function(data) {
        res.json(data);
        res.end();
    })
    .catch(function (err) {
        console.log(err);
    });
});

via sterg