I’m pretty sure you have to be running an older iOS (pre-iOS 11 at least) to repro, but here are three that do not work on iOS 10.3.3 Safari:
「いいね!」 3
I’m pretty sure you have to be running an older iOS (pre-iOS 11 at least) to repro, but here are three that do not work on iOS 10.3.3 Safari: