$.getJSON not working with JSONP data

Question

I am trying to do a JSONP request for data from http://soarforward.com/ClassDocuments, but it's not working.

If you go to the URL you can see the JSON. I am converting an ASP.net object to JSON myself, so if the javascript is invalid I can modify it.

Here is my example code : http://jsfiddle.net/guanome/JDLqf/

function getFiles() {
    var url = "http://soarforward.com/ClassDocuments";
    $.getJSON(url + "?callback=?", null, function(result) {
        console.log(result);
    });
}
$(document).ready(function() {
    getFiles();
});

Try adding this arguments to your $.getJSON() call: dataType:'jsonp' If it's still not working try adding: jsonp: 'jsonp' — paparush, Nov 05 '11 at 23:11
The sever does not seem to return JSONP. http://soarforward.com/ClassDocuments?callback=foo still returns JSON. — Felix Kling, Nov 05 '11 at 23:12
@FelixKling what do I need to do to my page to have it return JSONP? — FarFigNewton, Nov 05 '11 at 23:41
See [Wikipedia](https://secure.wikimedia.org/wikipedia/en/wiki/JSONP) for details. The server has to return something like `valueOfCallbackParameter(jsonHere);` — Felix Kling, Nov 05 '11 at 23:47
@FelixKling That fixed it, I knew I was missing something to do JSONP. Can you tell me why this twitter example works but mine didn't? http://stackoverflow.com/questions/2681466/jsonp-with-jquery. From what I could tell, they don't have a callback function either. — FarFigNewton, Nov 06 '11 at 00:06
I don't know the URL provided there does not work at all for me. But compare the different results of https://api.twitter.com/1/statuses/user_timeline.json?screen_name=codinghorror and https://api.twitter.com/1/statuses/user_timeline.json?screen_name=codinghorror&callback=foo — Felix Kling, Nov 06 '11 at 00:13
@FelixKling they used the same jquery method that I did with this url, http://api.twitter.com/1/statuses/user_timeline/codinghorror.json. It returns a JSON object without the callback, yet I am able to access it in this example without cross domain issues, http://jsfiddle.net/guanome/uD6ke/ — FarFigNewton, Nov 06 '11 at 00:18
I don't understand, in your example you are also adding `"?callback=?"` to the domain. That indicates that the server should return JSONP and then it does. Or am I misunderstanding you? — Felix Kling, Nov 06 '11 at 00:21
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/4761/discussion-between-guanome-and-felix-kling) — FarFigNewton, Nov 06 '11 at 00:22

score 0 · Accepted Answer · answered Nov 06 '11 at 00:33

0

I forgot to wrap my return JSON in a function call.

I was returning

{"foo" : "bar"}

instead of

fooBar({"foo" : "bar"});

answered Nov 06 '11 at 00:33

FarFigNewton

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$.getJSON not working with JSONP data

1 Answers1