In order to assure the proper work of event tracking for ZIP download links, does it only work with plain anchor links
<a href=... bla bla> or a stylize button with a shortcode with the URL inside will also work?
[button link="http://www.mywebsite.com/pdf/document.zip" size="medium"]Download PDF in a zip[/button]
Because for now, nothing is working.
Thanks for your help.