I am using Mikrotik Routerboard 1200 with Hotspot service and I have a problem regarding HTTPS redirects

if the default page blank or https://www.google.com the user couldn,t get the login page directly
he has to use any other not secure website to get the login page
what I mean is HTTPS Reditrect to login page doesn,t work

let me make it more clear .
let's say that my homepage on any browser is www.yahoo.com
when I connect to the network " Mikrotik Hotspot " it redirects me right away to the login page either an internal one or an external one

but if my home page was a secure website like https://www.google.com then redirection fails and no login page until user insert any other website using http protocol not an https one .

see http://forum.mikrotik.com/viewtopic.php?f=2&t=70006