$.getJSON() dont fire the response callback

JavaScript
1

I need to make a JSONP request and i am using the following code:

var jsonp_url = "url?callback=?";
              $.getJSON(jsonp_url,function(data) {
                    alert("success");
                 });

In the server side:

$callback = $request->getParameter('callback');
 echo $callback.'{'. json_encode(array('html'=> 'test')).'}';

In the firebug console the response appears like this:

jsonp1286547104165{{"html":"test"}}

The problem is that the callback function of $.getJSON method is never executed.

What i am missing?

2

Problem solved. Need to encapsulate jsonP response in ‘(’ instead of ‘{’.