Hi there and welcome to the forum,
That's new one on me. Unfortunately I'm long past the lollipop stage.
If there is no allergen warning on the packet, I would refer to the Coelaic UK Food and Drink Directory and failing that I would give the dieticians at Coeliac UK ( Nicky and Norma) a call.
I have been known to telephone manufacturers directly for information!
I work on the basis of if in doubt leave it out.
Sorry I can't be of more help but all the best to Lollipop.
Janet Foster