Error: jQuery1830649454693285679_1359620502896 was not called JSON

Question

I have read through many, many Q&A of the same issue, but none have my specific issue (at least not that I could find). I have a php script that echos back a json string ``` header('Content-Type: application/json'); echo $result; ``` JSON returned (checked with JSONLint and is valid): ``` {"Announcement":{"ID":1,"Type":1,"Text":"This is a test Albums announcement.","TimeStart":"1969-12-31","TimeEnd":"1969-12-31"}} ``` And a web jquery script that reads the json: ``` $.ajax({ type : "GET", url : "http://b***s.net/S****s/GetAnnouncements.php?callback=?", data : {get_param : "Announcement"}, dataType : "json", error : function(jqXHR, textStatus, errorThrown) {alert(errorThrown); alert(textStatus);}, success : function(data) {alert('success'); $.each(data, function(index, element) { alert('here'); $("#announcements-list").append("

" + element.Type + ": " + element.Text + "

"); $("#announcements-a-" +…

Accepted Answer

Your server and client scripts do not complement each other. You have two options:

Make your server side script return JSON:

```
Content-Type: application/json

{"Announcement":{"ID":1}}
```

And omit the callback parameter:

```
$.ajax({
    type : "GET",
    url : "http://example.com/feed/json.php",
    dataType : "json"
});
```

Make your server side script return JSONP i.e. JSON wrapped in a callback function:

```
Content-Type: application/javascript

jQuery_xxxxxxxx({"Announcement":{"ID":1}});
```

And change datatype to jsonp:

```
$.ajax({
    type : "GET",
    url : "http://example.com/feed/json.php",
    dataType : "jsonp"
});
```

Note that jQuery silently appends `&callback=jQuery_xxxxxxxx` to the URL for such requests. The server should use the callback name specified in the URL. You can do something like this:

```
echo sprintf(
    "%s(%s);",
    isset($_GET["callback"]) ? $_GET["callback"] : "void",
    json_encode($data)
);
```

Error: jQuery1830649454693285679_1359620502896 was not called JSON

Solution

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