Redirecting with cpanel "failurl" variable

[scoob19]

Hi, I am setting up a custom webmail login page, currently here:
Félicité Day Spa :: Webmail

When there is an incorrect login/password combination, it passes the "failurl" variable, which it seems cpanel supports. The problem is that the login page is not redirecting back to the original page and im wondering if cpanel is not recognizing the "failurl" variable.

For example, if you type in an incorrect login/password, the resulting url is:

felicitedayspa.com:2095/login/?user=username@felicitedayspa.com&pass=******&failurl=http://felicitedayspa.com/mail/index.php?failed=1

So it should redirect back to http://felicitedayspa.com/mail/index.php?failed=1 but its not working. Any idea why its not recognizing it? Am I doing this incorrectly?

Thank you!