He puesto esto:
<iframe src ="http://dominio.com/kayakoser/index.php?ticketid=<?php echo "$ticketid"?>" width="100%" height="300">
<p>Your browser does not support iframes.</p>
</iframe>
Y me da el siguiente error:
Not Acceptable
An appropriate representation of the requested resource /kayakoser/index.php could not be found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
:?