How can PHP developers effectively troubleshoot and debug issues related to cross-domain policies when using proxy scripts for flash players?

When using proxy scripts for flash players, PHP developers may encounter issues related to cross-domain policies. To effectively troubleshoot and debug these issues, developers can ensure that the proxy script includes proper headers to allow cross-domain requests. By setting the "Access-Control-Allow-Origin" header to "*" in the PHP script, it will allow requests from any domain to access the resources.

<?php
header("Access-Control-Allow-Origin: *");

// Your proxy script logic here
?>