When the user is trying to modify the multi-catalog homepage (catalogs_home) by clicking the '+' button, nothing is happening.
ReferenceError: Can't find variable: glideGrid
It was found that this behavior and the subsequent browser console error only happen in a Safari browser.
When the user utilized a different browser (in this case, Chrome and Firefox), the issue no longer occurred. The user was then able to click and use the '+' button ("Add Content") to add content to the multi-catalog homepage without issue.