How to make a 301 redirect from links with parameters?

Question

htaccess

There is a site where links have a parameter in them, you need to redirect it to a new page, I write using this rule:
Options +FollowSymlinks
RewriteEngine On
RewriteCond %{QUERY_STRING} ^_route_=?page=about$
RewriteRule ^(.*)$ http ://new_site/about-us/? [R=301,L]
Everything seems to be happening correctly, what is needed is displayed, only an extra additive appears
: http://new_site.ru/about-us/?page=about
Tried it in other ways - the result is the same, it works, but with unnecessary additive. How to solve the problem?

Answer 1

Try this:
RewriteRule ^page=about?/?$ http://new_site/about-us/? [L,R=301]