Set a cookie for leads upon redirect

[jimpdx]

I am trying to restrict access to a WP page to only people who have filled out the lead form. With SSL and TLS I can't not rely on the HTTP referrer. Any thoughts on how to do that, or might it be considered a feature request? :)

[nciske]

You’d need to drop a cookie in the post submit hook to reliably track that — so it can be done today with a few lines of PHP.

Not sure if this fits as a core feature or addon.