There is an incorrect redirect to a new domain, why?

Question

htaccess

I add www:
RewriteCond %{HTTP_HOST} ^site\.ru$ [NC]
RewriteRule ^(.*)$ http://www.site.ru$/$1 [R=301,L]
But redirect to from site.ru /category?id=1 addresses occur at http://www.site.ru%24/category?id=1. Those. appears from somewhere %24... What could be wrong?

Answer 1

I am cancer