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I'm writing an app and I need to access some json data in the client side from another server. Because of the cross domain issue I plan on using jsonp. jQuery allows me to do this using the $.getJSON() method, however, I have no way to tell if the method has failed (i.e., the server is not responding or something). So I tried the approach to get the JSON data using $.ajax instead. But it's not working and I don't know what to try. Here an example showing my issue:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>TEST</title>
<script type="text/javascript" src="scripts/jquery-1.5.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#button_detect').click(function(){
var feedApiAjax = 'http://ajax.googleapis.com/ajax/services/feed/load?v=1.0&q=';
var feedApiGetJSON = 'http://ajax.googleapis.com/ajax/services/feed/load?v=1.0&callback=?&q=';
var feedUrl = 'http://www.engadget.com/rss.xml';
$.ajax({
url: feedApiAjax + feedUrl,
datatype: 'jsonp',
success: function(data) {
console.log('$.ajax() success');
},
error: function(xhr, testStatus, error) {
console.log('$.ajax() error');
}
});
$.getJSON(
feedApiGetJSON + feedUrl,
function(data) {
console.log('$.getJSON success');
});
});
});
</script>
</head>
<body>
<div id="button_detect">CLICK ME!!!!</div>
</body>
If you create a web page with this code and click on the "Click Me" div you'll see that the $.getJSON request is working and the $.Ajax one is not. I've tried putting/removing the "callback=?" tg, used "jsonp" and "json" data types, but non of this worked.
Any idea on what might I be doing wrong?
Cheers!
659
When the dataType is jsonp, jquery won't fire the error function automatically. This is described in the documentation under the "error" option:
Note: This handler is not called for cross-domain script and JSONP requests. see here.
The workaround is to explicitly specify a timeout as an option. If the server doesn't respond in the specified amount of time then the error function will be called. More about this here.
200
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