CORS is now enabled for ASN files. Here is a sample jQuery request for a Common Core State Standard manifest file.

gistfile1.js

$.ajax({
 url: "http://s3.amazonaws.com/asnstatic/data/manifest/D10003FC.json",
 success: function(data, status){
  alert("success");
  console.log(data);
 },
 error: function(){
  alert("something went wrong");
 }
});