Gary begs: please, somebody, fix the trunk unit tests so CI will pass

[Gary Poster]

Yes, unit tests work in Chrome, but we now have a new IE failure from
somebody, and we still don't have a FF fix from the textarea widget.
Pleeeeeeeze?

The failing tests we've had for almost a week (!!!) are almost
exclusively our fault, not Canonistack's.

If you are tackling it, please let other people know so we don't dupe.

Thanks

Gary