301 redirect with .htaccess - quick help needed:

Hi,

A little help from Apache gurus here would be much appreciated. My CMS produces URL-s like

mydomain.com/?lang=1
mydomain.com/index.php?lang=1
myaliasdomain.com/?lang=1
myaliasdomain.com/index.php?lang=1

I need to forward all of them to homepage mydomain.com/
My .htaccess includes following code

RewriteCond %{THE_REQUEST} lang=1
RewriteRule . http: // www. mydomain. com? [R=301,L]

it works perfectly for

mydomain.com/index.php?lang=1
myaliasdomain.com/index.php?lang=1

but does not redirect URL without index.php in it. What code should I use to redirect mydomain.com/?lang=1 and myaliasdomain.com/?lang=1?

Thanks a lot!

 

Bump! Anyone knows? How should I insert redirect for URL like mydomain.com/?lang=1?

 

Tried many RewriteCond and RewriteRule variations but still didn`t find solution that works. If anyone knows how to redirect

mydomain.com/?lang=1 to mydomain.com/

any help would be much appreciated.

Thanks!