Open
Description
This appears to be present in both latest v3 (e.g., mathjax.org#demo) and v4-beta
With the mathtools package, \vdotswithin{\ldots}
or \vdotswithin{}
throws an error.
This happens both client side and in nodejs.
Obviously, this is bad authoring (and \vdots
works fine) but "real" mathtools handles this fine so it might be something worth fixing.