Pointing Custom download of Foundation to a CDN

We use a custom package of v6.5.1 of Foundation (for some reason the later versions did not work on our website).

Having used it for a couple of years, we decided to use a CDN to host our static javascript and css files. Unfortunately, when we point the to the CDN, we get errors along the lines of "foundation __webpack_require__ is not defined"

Has anyone migrated a custom package of Foundation to a CDN?

Not sure what we need to change.

Start by reproducing the reported Foundation v6.5.1 custom-package setup with its JavaScript and CSS loaded from a CDN, focusing on the “foundation __webpack_require__ is not defined” error. Determine the required CDN loading or packaging arrangement and verify that the custom Foundation assets load without that error on the website.

Written by the indexing model from the issue text.