1<?php
2    $username = $password = "aaaa";
3
4    if ($_SERVER['PHP_AUTH_USER'] == $username && $_SERVER['PHP_AUTH_PW'] == $password){
5        echo 'Test steps:<br>';
6        echo '1. Set Private Browsing off. (Settings -> Privacy & Security -> Private Browsing)<br>';
7        echo '2. Refresh the page.<br>';
8        echo '3. There should be a dialog for you to input username and password again.<br>';
9        echo 'If you can\'t see the dialog, this test fails.<br>';
10        exit;
11    } else {
12        header('WWW-Authenticate: Basic realm="My Realm"');
13        header('HTTP/1.0 401 Unauthorized');
14        echo "Authorization Required.";
15        exit;
16    }
17?>
18