It is really seems to be google bug, because i made some modifications in han_login, so auth_key is not being cheked while authentifications and any post request with
http://www.mysite.com/index.php?ips_username=GoogleCrawler&ips_password=password&app=core&module=global§ion=login&do=process
ends up with successful authorisation
but google is still shows blank page in authorisation test
anyone knows, where i must post my issue for google? in google groups?