// START - add Permissions-Policy Header header("Permissions-Policy: accelerometer 'none' ; ambient-light-sensor 'none' ; autoplay 'none' ; camera 'none' ; encrypted-media 'none' ; fullscreen 'none' ; geolocation 'none' ; gyroscope 'none' ; magnetometer 'none' ; microphone 'none' ; midi 'none' ; payment 'none' ; speaker 'none' ; sync-xhr 'none' ; usb 'none' ; notifications 'none' ; vibrate 'none' ; push 'none' ; vr 'none' "); // END - add Permissions-Policy Header // START - add Referrer-Policy Header header('Referrer-Policy: same-origin'); // END - add Referrer-Policy Header // START - add X-XSS-Protection Header header('X-XSS-Protection: 1; mode=block'); // START - add X-XSS-Protection Header // START - add X-Frame-Options Header header('X-Frame-Options: SAMEORIGIN'); // START - add X-Frame-Options Header // START - add X-Content-Type-Options Header header('X-Content-Type-Options: nosniff'); // START - add X-Content-Type-Options Header header('Access-Control-Allow-Origin: *');