The global mw.popups.enabled is set first by the desktop target.

mw.popups.enabled = mw.popups.getEnabledState();

Then re-called by schema code:

	popupEnabled: mw.popups.getEnabledState(),

Schema code should base popups enabled by using the global variable mw.popups.enabled or memoize mw.popups.getEnabledState.