redirecting to https

[Ian M. Evans]

Okay, maybe I have a cold coming on...but I've got a couple of URLs I 
need to redirect to https and the examples I've seen don't appear to be 
working:

location /asecuredir {
        rewrite  ^(.*)  https://www.example.com$1  redirect;
        }

I've tried /asecuredir  and /asecuredir/

It appears to redirect to https if I enter 
http://www.example.com/asecuredir but doesn't redirect if I use
http://www.example.com/asecuredir/somepage.shtml

Thanks.