Why should this htaccess fail

Tryin to block domain

[Snookered]

Hi
This just doesn't work.
I've tried lots of variations but nothing seems to help:

RewriteEngine on
RewriteCond %{HTTP_REFERER} ^http(s)?://(www\.)?offenderdomain.com.*$ [NC]
RewriteRule .* htttp://www.yahoo.com [L]

There is nothing alse in the file except the above.

Any ideas?

Thanks

[Snookered]

I left it overnight and now it works. Some sort of delayed server reaction I guess.

[jdMorgan]

When you test such access-control rules, you have to manually flush your browser cache before testing each and every change. Otherwise, your browser simply displays the previously-fetched page contents from its cache, and the request is never sent to your server. If the request isn't sent to your server, then your code can have no effect.

Jim