popey on Nostr: Hah! I cloned the Fedilab App repo earlier, grepped for xcancel, found mention of it ...

Hah! I cloned the Fedilab App repo earlier, grepped for xcancel, found mention of it in that MathJaxAndroid and thought "That can't be right!?" and promptly jumped out of the rabbit hole. Well done for digging deeper :D