On Sat, 22 Jun 2019 21:10:08 -0400 Sławomir Osipiuk via Unicode <unicode@unicode.org> wrote:
> In fact, that might be the best description: It's not just an > "ignorable", it's a "discardable". Unicode doesn't have that, does it? No, though the byte order mark at the start of a file comes close. Discardables are a security risk, as security filters may find it hard to take them into account. Richard.