Access-Control-Allow-Origin is not showing up in response headers from codeigniter

Question

My Codeigniter file says

$CI->output->set_header(\"Access-Control-Allow-Origin: *\");
$CI->output->set_header(\"Access-Control-Expose-Headers: Ac         


        

Answer 1

What worked for me is:

$this->output
  ->set_header('Access-Control-Allow-Origin: http://localhost:4567')
  ->set_header('Content-type: application/json')
  ->set_status_header(200)
  ->set_output( json_encode($to_encode) )
  ->_display();