How call a controller from javascript after press a button

Question

I created a controller that returns a pdf, my problem is that I can't recall it from javascript, by pressing the button with the click action.

I have tried with ajax.rpc and rpc.query but to no avail. If I go to the url I can download the file.

Is there any way to get the file that the controller returns?

Answer 1

My solution:

$.ajax({
    url: url,
    type: 'GET',
    success: function() {
       window.location = url;
 }
});