setcookie() does not set cookie in Google Chrome

I am going through some PHP tutorials on how to set cookies. I have noticed that cookies are successfully set on FF4 and IE9, however it does not get set in Chrome (11.0.696.60). The PHP file was served from XAMPP (localhost).

I tried the example from w3schools:

<?php
setcookie("user", "Alex Porter", time()+3600);
?>

And from this site (for localhost environments):

<?php
setcookie("username", "George", false, "/", false);
?>

Thanks in advance.