$.ajax({
    url: 'http://your-app.com/api/news/12',
    dataType: 'JSONp',
    success: function(data, status) {
        $.each(data, function(key, value){
            //handle the data                
        });
		
        var localData = JSON.stringify(data);
		
        window.localStorage.setItem('newsArticle12', localData);
    },
    error: function() {
        //handle the error
    }
}

var localData = JSON.parse(window.localStorage.getItem('newsArticle12');
2
 
3
$.each(function(key, value){
4
    //handle the data
5
});