Ubuntu javascript-general

This gets asked a lot. The short answer is that it can't be done for security reasons.

The longer answers include mention of the drawWindow function that only FireFox has,...

models.products.findAll({
  include: [
    {model: models.comments, include: 
}) 

I think you can check the headers of the response for the content-type as below:

response.headers.get(content-type)

use this

echo json_encode($array);

on server side

and

var arr=JSON.parse(result);

on client side