it seems with the most recent ArcGIS Hub updates I'm unable to load most of my sites in IE 11.
I've tried it with a few other sites from across the internet (including a bunch on the Hub Gallery page) and get the same error on all of them.
I've also tried just spinning up a blank hub site and got the same issue.
I think the issue is coming from the vendor js webpack modules but it's a bit tough to trace at the moment.
Any advice or tips (other than stop using IE trust me I wish we could) would be great.