mod_rewrite and double slash issue

Question

I applied the following mod_rewrite rule in Apache2 to redirect from non www to www:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^exa         


        

Answer 1

Putting a slash into your pattern should resolve this issue:

RewriteRule ^/(.*)$ http://www.example.com/$1 [R=301,L]