How can I create an afterclose event with FancyBox3? I’m using afterClose event with the second version of fancybox but i’m trying to upgrade to fancybox3 and the instructions say to put the options in “data-options” attribute. Here’s what i tried: and also: Answer Your 2nd snippet should work, see this demo – https://codepen.io/anon/pen/OQmBZy?editors=1010 HTML JS I have put alert(‘Done!’)