[cap-talk] Firefox breaks the principle of identifiability

[Ben Laurie]

Ka-Ping Yee wrote:
> On Mon, 7 Feb 2005, Mike Linksvayer wrote:
> 
>>>This does not seem feasible to me for a character set as large as
>>>Unicode, and flatly impossible for Unicode in particular because
>>>Unicode includes characters that are *defined* to be invisible or
>>>to combine with other characters to yield perfect homographs.
>>
>>Render non 7-bit printable ASCII characters in a different color.  Or
>>with a different color background.
> 
> 
> How do you render a zero-width non-breaking space in a different colour?

They are not legal in punycode, so the point is moot.