1<?php 2 if (!isset($_SERVER['PHP_AUTH_USER'])) { 3 header('WWW-Authenticate: Basic realm="WebKit AppCache Test Realm"'); 4 header('HTTP/1.0 401 Unauthorized'); 5 echo 'Authentication canceled'; 6 exit; 7 } else { 8 header("Content-Type: text/cache-manifest"); 9 echo "CACHE MANIFEST\n"; 10 echo "subresource.php\n"; 11 } 12?> 13