Cannot Load Meteor Site In Facebook Mobile Browser IAB

Trying to load Meteor site on Facebook’s in-app browser, and getting a series of errors. Will post a screenshot.

It could be that the modern browser bundle is being served instead of the legacy. FB browser appears as legacy in my logs. I have no issue with it and by this I mean there is no issue like Meteor Apps don’t work in FB browser.

This only started happening on February 3rd, so I’m unsure what’s going on. Could this be a jQuery issue?