Possible to detect if a user has multiple tabs of your site open?

Question

I\'m just thinking about the whole site registration process.

A user goes to your site, signs up, and then you tell him you\'ve sent him an email and he needs to ve

Answer 1

You can send an AJAX request every X seconds from the original tab that asks the server if it received a request from the email.

You cannot close the second tab automatically, but you could have it ask the server after 3X seconds whether it heard from the first tab.