Question

Is there something wrong with my JSON?

http://codepen.io/anon/pen/Ieyvl

var url = "http://x.com/json.js";

$.getJSON(url, function(response){
    alert("worked!");
    alert(response);
});

If its a “cross-domain” issue, then why does this work?

http://codepen.io/anon/pen/BHshC

var url = "http://gdata.youtube.com/feeds/api/playlists/PL3E245DF445E37F50?v=2&alt=jsonc";

$.getJSON(url, function(response){
    alert("worked!");
    alert(response);
});

Answer 1

Look at the console:

XMLHttpRequest cannot load
http://xml.hosting.subsplash.com/5KQ4CM/json.js. Origin
http://secure.codepen.io is not allowed by
Access-Control-Allow-Origin.

Read about the same origin policy.

You need to use JSONP if they support it. And if the server supports it look into CORS

---

[EDIT]

I did not check, but if the Google example works, it is probably because Google Enabled CORS for that resource. That mean browsers that support it can request the resource with an Ajax call. Not all browsers support that type of handshake request. [looking at you older IEs]