PHP Warning in wp-cron.

In #46417, it was noted this plugin is throwing a warning in wp-cron.php due to an attempt to send headers after fastcgi_finish_request().

This occurs on environments running fastcgi on PHP 7.0.16 or later following [44488].

To fix this, are you able to add a headers_sent() check before sending any headers?

<?php
if ( ! headers_sent() ) {
        header( 'X-Ticket: 46417' );
        // or redirects, starting sessions, setting cookies, etc.
}

Thanks