Quoting (was: Three month spec freeze)

[Petite Abeille]

> On Jun 3, 2020, at 21:32, James Tomasino <tomasino at lavabit.com> wrote:
> 
> If that's too ugly, there's always the good old zero-width space for you
> crazy cats.
> https://en.wikipedia.org/wiki/Zero-width_space

Ah, yes, another can of worms:

Blacklisting in URLs
ICANN rules prohibit domain names from including non-displayed characters such as zero-width space, and most browsers blacklist their use within domain names, because they can be used to create a homograph attack, where a malicious URL is visually indistinguishable from a legitimate one.

http://kb.mozillazine.org/Network.IDN.blacklist_chars

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