[SOLVED] .htaccess redirect http to https for only some addon domains

.htaccess redirect http to https for only some addon domains

I have a multiple addon domains on my hosting account. I would like to redirect non-https to https for the main domain AND ONLY ONE of the addon domains.

The problem I am experiencing is www.firstaddondomain.com is not redirecting to https://www.firstaddondomain.com. Instead it does not appear to be redirecting at all. It stays at www.firstaddondomain.com.

Note: I do not want to redirect all http to https. I have another addon domain that I do not want redirected to https.

Here is what my .htaccess file looks like:

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^(www\.)?maindomain\.com$ [NC]
RewriteRule ^$ https://www.maindomain.com/$1 [R,L]
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^(www\.)?firstaddondomain\.com$ [NC]
RewriteRule ^$ https://www.firstaddondomain.com/$1 [R,L]

UPDATE: Thanks for your answer, anubhava. My first addon domain is actually a .org domain, so my updated .htaccess file is slightly different from your answer.

Here is my updated .htaccess file

RewriteEngine On

RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^(?:www\.)?firstaddondomain\.org$ [NC]
RewriteRule ^ https://www.firstaddondomain.org%{REQUEST_URI} [R=302,L,NE]

RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^(?:www\.)?maindomain\.com$ [NC]
RewriteRule ^ https://www.maindomain.com%{REQUEST_URI} [R=302,L,NE]

Solution

Your regex isn't capturing $1
Both rules can be combined into one

You can use:

RewriteEngine On

RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} ^(?:www\.)?(maindomain|firstaddondomain)\.com$ [NC]
RewriteRule ^ https://www.%1.com%{REQUEST_URI} [R=302,L,NE]

Make sure this rule is your very first rule and placed in DocumentRoot/.htaccess of both domains.