how to check whether the ajax request handled by a specific url or not prototype

Question

I try to use an ajax request to save a category option and wonder how could I detect whether my ajax request has been successfully handled by ajax_attributes.phtml. My issue is no matter what url I specify, it always alerts it works, even I change the url into something like yadayada.phtml ,which is not existed at all.

 new Ajax.Request('ajax_attributes.phtml', 
            {
                parameters: {categoryId: categoryId},
                onSuccess: function(response) {
                // Handle the response content...
                alert('it works');
                },

                onFailure: function(){
                 alert('Something went wrong...');
                }
            }); 

Answer 1

You can try with this code :

var request = $.ajax({
     url: "script.php",
     type: "POST",
     data: { categoryId: categoryId},  
     dataType: "html"
}); 

request.done(function( msg ) {
     alert('it work');
});

request.fail(function( jqXHR, textStatus ) {  
     alert('Something went wrong...');
});