chromium/third_party/blink/web_tests/http/tests/misc/authentication-redirect-4/resources/auth-echo.php

<script>
    document.write(document.location);
    document.write(" loaded with HTTP authentication username '<? echo $_SERVER["PHP_AUTH_USER"] ?>' and password '<? echo $_SERVER["PHP_AUTH_PW"] ?>'");
    if (window.testRunner)
        testRunner.notifyDone();
</script>