Hi there. After a recent Cornerstone update my client's site http://www.kcequipment.com.au started getting an error on some modal pop-ups.
The modals are generated by the Bootstrap Modals plugin, which we've been using without incident since the site was launched. Now when triggered they display nothing except an overlay, and cannot be closed.
I'm receiving the following error in the console:
Uncaught TypeError: this.$backdrop.one(...).emulateTransitionEnd is not a function
When I deactivate Cornerstone the modals work fine again.
The modals are triggered by text links and buttons, such as the "JOIN US" button in the footer.
(PS - I know Convert Plus now offers this functionality, but my client has DOZENS of contact forms used in modals, and makes new ones all the time. The current workflow means the client only has to use a shortcode to load a modal to a page. Using Convert Plus will mean every page will need to be edited, the theme files will need to be edited and my client will have the extra step of creating a Convert Plus modal whenever they want to create a new landing page etc...)