Exit Code
 

I'm looking for a exit popup code that activates when some tries to exit out of the page on the upper bar on the page..I have one I use on my WordPress as a plugin. Yet I have not found one for HTML page. Does anyone have one or does any one know how to code for my site for money?
Thanks

I use ouibounce
carlsednaoui.github [dot] io/ouibounce/