Description from extension meta
Tell sites your child is under 18 without personal data.
Image from store
Description from store
This is a tongue-in-cheek but entirely functional method of protecting children.
Rather than handing over your child's personal information, including pictures & videos, this simple plugin adds an "x-osa-under18" header to every single request, allowing sites to check for the header before deciding to show content.
No personal data, no 3rd-party services - absolutely nothing other than a header installed by a concerned parent. If you care enough to support OSA, you should be willing to lock down your child's device sufficiently to prevent "accidental" access to damaging content. If your child is trying to access such content, know they're almost certainly able to bypass any protection in place - including this.
The protection already available to you in iOS/Android should be sufficient to mitigate the risk... without OSA.