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Posted by »Q« on 01/31/06 06:23
W3C recommends a system identifier URI be used along with the public
identifier in the DTD. I had thought the URI was required, but
after using HTML Tidy to convert some pages to HTML 4.01, I noticed
the Tidy didn't put the URI in and that the W3C validator doesn't
mind its absence.
W3C says the URI "allows the user agent to download the DTD and
entity sets as needed." Is the URI actually necessary? Desirable?
Are there any agents which download it? [insert more vague questions
for discussion here]
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Β»QΒ«
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