Anne van Kesteren wrote:
How so?
Well, your article advocates sniffing specific user agents where the one
written by Mark Pilgrim uses the Accept: header which was actually
designed for this... Google, for one, is known for not supporting XHTML
really well.
I'm not doing content negotiation here. There's one representation
available. It is XHTML. We can send that to most browsers and they'll
deal reasonably. Two I know of have problems (IE and Lynx) so we lie to
them and tell them it's text/html.
I am curious what problems Google has with XHTML. Then they deal.
Then of course there are some interoperability issues with XHTML and
entities that haven't really been sorted out yet...
Such as?
Well, since browsers have non-validating XML parsers you actually can't
use entities, but then you can because they have some build in knowledge
for certain DOCTYPEs... However, this is not guaranteed to be cross
browser.
What browsers can't handle this?
Theoretically, it is completely spec compliant for a browser to notice
PUBLIC identifier in the DOCTYPE, use that to resolve entities or do
whatever else it needs to do with that DTD, and never actually load the
file at the SYSTEM ID. You absolutely can use all defined entities that
are available in XHTML 1/HTML 4. Practically, that's exactly what
happens in every browser I've tested, but there might be one I've missed
somewhere.
If you meant that you can't define new entities, then that's essentially
correct. That's also true of HTML of course.
--
Elliotte Rusty Harold [EMAIL PROTECTED]
Java I/O 2nd Edition Just Published!
http://www.cafeaulait.org/books/javaio2/
http://www.amazon.com/exec/obidos/ISBN=0596527500/ref=nosim/cafeaulaitA/
