I'm trying to do a very basic GET request to the Codewars API, but for some reason I'm getting an error saying Unexpected token :. 
Here is my code:
var apiKey = 'iJUXzfpo96eUXXa-BzsT';
var baseURL = 'https://www.codewars.com/api/v1';
var user = 'GiacomoSorbi';
// Example GET user
$.ajax({
    type: 'GET',
    url: `${baseURL}/users/${user}?${apiKey}`,
    dataType: 'JSONP',
    success: function (data) {
        console.log(data);
    }
});
and here's a JSFiddle. Any help would be appreciated.
EDIT:
Here is a link to the response I get.
