Sometimes modals don't seem to open when their trigger is click on. This is due to the following lines in the handler for clicking outside the modal:

Note the check for this.panelTriggerNode !== target. Consider the following layout:

<trigger element>
  <sub element>
<trigger element>
<modal popout element>

When <sub element> is clicked on, the modal is opened. However, since the trigger is outside the modal, the closeXOnClickOutside handler is also called - and since sub element !== trigger element, it immediately closes the modal again

The solution for both modal types is to replace _this.XTriggerNode !== target with !this.XTriggerNode.contains(target).