Wordpress htaccess in root overriding htaccess in subdomain. Subdomain app not working now

Question

We have a WP install in the root of our server and its running great.. but, we just installed another app in a subdomain. Now, I can view the index.php of that app but cannot do anything with it.. the htaccess rules in the root (from WP base install) are effecting the requests.

So, how to I eliminate the WP htaccess file from effecting the subdomain?

Here is the htaccess contents for the root (WP install):

<IfModule mod_rewrite.c>
RewriteEngine On
# BEGIN WordPress
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
# END WordPress
</IfModule>

And for the htaccess in the subdomain:

RewriteEngine on
RewriteCond $1 !^(index\.php|css|stylesheets|js|images|user_guide|favicon\.ico|robots\.txt)
RewriteRule ^(.*)$ /index.php/$1 [L]

I've search everywhere online and tried a couple samples I found.. nothing has worked.

Any help is greatly appreciated ! Thanks

UPDATE: It seems that maybe Wordpress is not the culprit.. out of curiosity, I removed all lines in the WP .htaccess file.. and the app in the subdomain was still not working. Its rewrite rule must be wrong..

So, it is the second rewrite rule that is not working. If I type in /index.php?about then I can see the about page.. but it should display by going to: /about

Answer 1

WP is also the culprit (you have two problems).

I can fix the first .htaccess problem because WP is predictable. You want to put this before the BEGIN WordPress section:

RewriteRule ^subdir-name/.*$ - [PT]

That grabs any requests to your subdir and Passes it Through (PT) so that it is not hijacked by WordPress.

The problem in your second .htaccess is that it seems to be assuming it is still in the root directory. For this one, I can't be sure without seeing the layout of your app, but the / before index.php may well be wrong. Are you sure that the paths in the second file match the new layout of your files?