wildcard subdomain with my custom domain?

I get dynamic data based on wildcard subdomain for each users, I am trying to map to alias domain, it works perfectly upon mapping but the issue is am not able to pass parameter in url properly in vhost

Example: When i enter aliasdomain1.com i get error only if i specify aliasdomain1.com/?username=name

 /var/www/domain.com/dir1/dir2/dir3/dir4/dir5/index.php?username=wildcard1 

Try 1

<VirtualHost *:443>
    ServerName wildcard1.domain.com
    ServerAlias aliasdomain1.com
    DocumentRoot /var/www/domain.com/dir1/dir2/dir3/dir4/dir5

</VirtualHost>

Try 2

<VirtualHost *:443>
    ServerName wildcard2.domain.com
    ServerAlias aliasdomain2.com
    DocumentRoot /var/www/domain.com/dir1/dir2/dir3/dir4/dir5
 RewriteEngine On
 RewriteCond %{HTTP_HOST} ^wildcard\.domain\.com$ [NC]
 RewriteRule ^(.*) http://www.aliasdomain2.com/$1 [L,R]
</VirtualHost>