.htaccess rewrite conditition ignore subdomain - wordpress

Question

My main domain is a Wordpress blog, and the .htaccess rewrite for it is as follows...
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
This works great, but I have a subdomain in that same directory, and am using this rewrite for it....
RewriteCond %{SERVER_PORT} ^443$
RewriteCond %{HTTP_HOST} ^my\.domain\.com$ [NC]
RewriteCond %{REQUEST_URI} !^/my/
RewriteRule ^(.*) /my/$1
That's for my wildcard SSL certificate. This works great, but if the location doesn't exist in the subdomain I get wordpress's error page. I need the wordpress rewrite to ignore the "my" subdomain. How can I do that?
I was thinking something like....
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^my\.domain\.com$
RewriteRule . /index.php [L]
</IfModule>
But that doesn't work, also tried this....
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^my\.domain\.com - [L,NC]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
Any ideas?

Answer 1

You should probably ignore the domain by adding a condition on the server name.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{SERVER_NAME} !^my\.domain\.com
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
Also, a thing I struggled with some time ago, try changing the htaccess of the subdomain to
RewriteBase /my
if "my" would be the directory it lives in.