actually i m thinking more and more to engage my visitors with a surver popping out when they visit. something very fast to reply , with only 1 question and a set of 1 to 5 possible answers.

is anyone did that ?

I was thinking about a google doc forms but it will be an iframe, I don't know how to detect to close the popup ?

I see this

but I didn't try

is anyone else, interesting in such a new feature for wpsubscribers ?