Hi! I've read http://advent.perldancer.org/2010/3 and I have a question. In the blog implementation, described in the article there is so called "flash". There is a global variable where one stores some message that is available after redirect: my $flash; sub set_flash { $flash = shift } sub get_flash { my $msg = $flash; $flash = ""; return $msg } ) post '/add' => sub { # some lines skipped set_flash('New entry posted!'); redirect '/'; }; I think there can be a problem with this thing: if there are a lot of requests to the site some user can see the flash message that was done for some other user. Am I right? I can see several ways of doing the same way but in more safe way: 1. redirect to page with parameter that identifies flash message (have a problem with not pretty urls) 2. store id to flash message in a cookie 3. store flash message in a session Any other ways?