title: how to add a Http header to all pages - CakePHP
body: <p>How can I add a Http header to all of my pages? The website I'm working was developed using CakePhP and I would like to add the header below to all pages.</p>
  
  <pre><code>Access-Control-Allow-Origin: https://url_of_my_website
  </code></pre>
  
  <p>Thanks in advance for any help!</p>