Playlist Error [iOS 13 on iPhone 11]

[joncameron]

Describe the bug
A valid playlist works in iOS 14 and 15 in Browserstack, but testing with an iPhone 11 on iOS 13 Ramp errors and displays a "Can't find variable message"

To Reproduce
Steps to reproduce the behavior, including the results:

1. Go to https://avalon-dev.dlib.indiana.edu/playlists/5 on iPhone 11/iOS 13 in Browserstack
2. Ramp displays an error instead of rendering the components

Expected behavior
Ramp shows the playlist page with as expected with no error messages.

Screenshots/Screen Recording

[joncameron]

This Safari version doesn't support this function (a more recent browser function). Resolution here is putting a check on browser version and disabling the function based on this.

@joncameron check analytics for iOS 13 and below usage. We're not supporting below iOS 14.