gistfile1.txt

var URL = "https://geo.mozilla.org/country.json";
var URL = "http://people.mozilla.org/~glind/";
var myHeaders = new Headers();

var myInit = { method: 'GET',
               headers: myHeaders,
               mode: 'cors',
               cache: 'default' };

var myRequest = new Request(URL,myInit);

var ohno = function () { console.log.call(null, arguments)};

fetch(myRequest,myInit)
.then(function(response) {
  console.log(response);
  return response.blob();
}, ohno)
.then(function(myBlob) {
  //var objectURL = URL.createObjectURL(myBlob);
  //myImage.src = objectURL;
});