DirectoryIndex index.php
<IfModule mod_rewrite.c>
RewriteEngine
On
#RewriteBase /
RewriteCond %{REQUEST_URI} ^(.*)//(.*)$
RewriteRule .
%1/%2 [R=301,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond
%{REQUEST_FILENAME} !-d
RewriteRule ^.*$
index.php?qa-rewrite=$0&%{QUERY_STRING} [L]
</IfModule>