Refs #17201: Use Tether as a non-window global variable

[karolyi]

No description provided.

[cvrebert]

Unless I'm mistaken, this won't work. The browser will throw ReferenceError: Tether is not defined.

[karolyi]

See #18647 (comment)

[karolyi]

or to be on the actually creative side, I can update the pull request with tooltip being invoked with jQuery and Tether, and then do an if (Tether === undefined && window.Tether === undefined) ...

[cvrebert]

Tether === undefined will throw a ReferenceError exception in the non-webpack case if Tether is unavailable.

[cvrebert]

Properly fixing this for all the dependencies (i.e. #17201) seems like a better use of our time.
Thanks though.

[karolyi]

@cvrebert see my last commit, that is a temporary fix, until you get the es6 imports right.