.htaccess - remove www. except when https
 

Hello,

I am trying to remove the www. at the beginning of our domain name via .htaccess. I'm doing it like this:

RewriteCond %{HTTP_HOST} ^www\.domain\.com$ [NC]

RewriteRule ^(.*)$ http://domain.com/$1 [R,NC]

It seems to word wonderfully.

I would like to retain the www. when someone accesses the site securely with https. I found a bit of code on the web that described how to force the www. except on a certain folder ("blog" in this case):

RewriteCond %{HTTP_HOST} !^$

RewriteCond %{HTTP_HOST} !^www\.domain\.com$ [NC]

RewriteRule !^blog(/.*)?$ http://www.domain.com%{REQUEST_URI} [R,L]

I thought if I changed it a little, I could make at least a single folder keep the www. like this:

RewriteCond %{HTTP_HOST} !^$

RewriteCond %{HTTP_HOST} ^www\.domain\.com$ [NC]

RewriteRule !^secure(/.*)?$ http://.domain.com%{REQUEST_URI} [R,L]

It didn't work. I got a redirect loop error.

Any ideas?