Loading spinner for iFrame Fancybox #816
Description
Is your feature request related to a problem? Please describe.
It would be great if there 's a option to add the loading spinner to iFrame Fancybox as well (for better UX). This seems to be a missing feature/option in version 6.
Describe the solution you'd like
JS Bin Example: https://jsbin.com/duyayaguze/edit?html,console
Describe alternatives you've considered
Added custom spinner to fancybox container with initLayout and hide spinner with Carousel.render event if iframe is loaded.
Additional context
Upgraded from v4 to v6. In v4 the loading spinner was added by default for iframes.