Angularjs JSONP not working

Solution 1:

@TheHippo is correct the data should not just be a plain json response. Here is a working example of a JSONP request against a youtube endpoint in AngularJS.

A couple of things to note in this example:

• Angular's $http.jsonp converts the request querystring parameter from callback=JSON_CALLBACK to callback=angular.callbacks._0.
• When calling the youtube endpoint I needed to specify to the service that this is a JSONP request by using alt=json-in-script instead of alt=json in the querystring. This was found in their documentation.
• Compare the results of this url to this one to see the difference between JSON and JSONP response in your browser.
• Take a look at the Chrome Network Panel in Developer Tools to help compare and troubleshoot with your request/response.

I know this example is very specific but hopefully it helps!

Solution 2:

JSONP requires you do wrap your data into a JavaScript function call. So technically you return a JavaScript file and not a Json file.

The data returned from server should similar to this:

// the name should match the one you add to the url
JSON_CALLBACK([
    {"id": "1", "name": "John Doe"},
    {"id": "2", "name": "Lorem ipsum"},
    {"id": "3", "name": "Lorem ipsum"}
]);

Edit: If some one else stumbles across problems with angular's JSONP please also read this answer to this question, it contains usefull informations about how angular handles the actual callback function.