It seems I am now unable to set a class/id etc to a div using the content properties of the popuptemplate. It used to work fine in the 4.13. It's pretty annoying as it means we can't style our popups like we used to and have to keep using 4.13.
Is there a workaround, or a reason why it changed?
Below is a Pen built using one of the API sample. As you can see the class property doesn't come through. If you switch back to 4.13, then it does.