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From Markus Schönhaber <tomcat-us...@list-post.mks-mail.de>
Subject Re: Tomcat 5 and UTF-8
Date Fri, 03 Apr 2009 22:53:54 GMT
Christopher Schultz:

> The problem is when the web server sends a response, it sends it using a
> particular character set (let's just say UTF8 for argument's sake). If
> you also report that the character set is UTF8 in the META tags, then
> it's only valid if the client saves the file to the disk with that same
> character encoding. If a different encoding is being used, then the file
> is "lying" about its own encoding.

Agreed, a wrong charset in a meta tag is brain-dead.

Nevertheless, one should keep in mind the charset reported in meta tags
is in practice *not* *only* used when the file is read from disk.
Firefox 3, IE 7 and Opera use the charset from the meta tag if the
server doesn't add a charset to the value of the Content-Type response
header field (Tomcat's DefaultServlet doesn't, for example).

BTW: Although the behaviour of the browsers does comply with the HTML 4
W3C recommendation you cited in an earlier post, they, IMO, violate RFC
2616 (HTTP/1.1) which says in section 3.7.1 that a missing charset in
the Content-Type header field means that the content is encoded in
ISO-8859-1 (for text/* media types, of course) - and the DefaultServlet
violates the RFC too.

Regards
  mks

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