XML : Angular js and XML response from thetvdb

I try get banners information with angular js from thetvdb api, and not work. Here is the complete code:

  var app = angular.module("tvdbApp", []);  app.controller('bannersCtl', function($scope, $http) {      $http.jsonp(          //'https://thetvdb.com/api/<myapikey>/series/274431/banners.xml' // gotham          'https://thetvdb.com/api/<myapikey>/series/279121/banners.xml' // flash        ).then(function(res) {          console.log(res)      }, function(res){          console.error(res)      })  });     

Of course, the api key is valid. Console message: "Uncaught SyntaxError: Unexpected token <"

When I tra the url-s in the browser, works well, I got the XML.

What is the problem?

Thank you.