@hongminhee Can you share an URL showcasing the problem?

@julian

@hongminhee @MastodonEngineering The only thing I can think of is the "\A" specifier in the regex. It seems to be an uncommon element that's not available in all regex resolvers, although Ruby should support it (and surely they would not remove something like that between versions). It's not much, but it's where I would start investigating if the failure is reproducible.