Hi,
If you have both this HTTP header:
Content-Type: text/html; charset=ISO-8859-1
and this HTML element in the <head>:
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
Which one is supposed to take precedence (override the other)?
Thanks. 10 6308
Newry <Ne***@nospam.com> wrote: If you have both this HTTP header:
Content-Type: text/html; charset=ISO-8859-1
and this HTML element in the <head>:
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
Which one is supposed to take precedence (override the other)?
The HTTP header.
Steve
--
"My theories appal you, my heresies outrage you,
I never answer letters and you don't like my tie." - The Doctor
Steve Pugh <st***@pugh.net> <http://steve.pugh.net/>
On Wed, 6 Apr 2005, Newry wrote: Content-Type: text/html; charset=ISO-8859-1
and this HTML element in the <head>:
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
Which one is supposed to take precedence (override the other)?
Feel free to consult the authoritative RFC2616. Nothing that we say
here could possibly override that.
See also http://www.w3.org/TR/REC-html40/charset.html#h-5.2.2 - also
appendix C to the XHTML/1.0 specification if you're interested in
XHTML.
(For HTTP transfers, the true HTTP header has priority over all other
sources. But that would be true or false no matter what anyone were
to say here about it. So be sure to consult the authoritative
sources. And nowadays even the popular browsers have caught up with
that.)
Newry wrote: Hi,
If you have both this HTTP header:
Content-Type: text/html; charset=ISO-8859-1
and this HTML element in the <head>:
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
The question is, why would you even bother including a pseudo-header
using a meta element, when you can just use the real thing? Meta
elements used with http-equiv should generally be avoided all the time
when the pages are being served over HTTP. Their only use would be if
the file is being loaded from the local file system or other location
where HTTP headers are unavailable, or are not properly configurable.
You may also be interested in reading "When Specifications Collide",
which discusses this issue a little more. http://ln.hixie.ch/?start=1037398795&count=1
--
Lachlan Hunt http://lachy.id.au/ http://GetFirefox.com/ Rediscover the Web http://GetThunderbird.com/ Reclaim your Inbox
Lachlan Hunt wrote: Newry wrote:
Hi,
If you have both this HTTP header:
Content-Type: text/html; charset=ISO-8859-1
and this HTML element in the <head>:
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
The question is, why would you even bother including a pseudo-header using a meta element, when you can just use the real thing? Meta elements used with http-equiv should generally be avoided all the time when the pages are being served over HTTP. Their only use would be if the file is being loaded from the local file system or other location where HTTP headers are unavailable, or are not properly configurable.
You may also be interested in reading "When Specifications Collide", which discusses this issue a little more. http://ln.hixie.ch/?start=1037398795&count=1
Exactly. Not every server has this or that module loaded and/or compiled
into it. E.g, my host will not enable mod_expires, hence I have a
http-equiv expires "workaround".
Furthermore, I send my page's language via a Content-Language header,
yet Bobby complains I'm not specifying a language and insists I put
<HTML lang="en"> etc, in my coding.
Sort of flies in the face of what Alan Flavell just wrote re: RFC 2616.
On Wed, 6 Apr 2005, Peter1968 wrote: Lachlan Hunt wrote: You may also be interested in reading "When Specifications Collide", which discusses this issue a little more. http://ln.hixie.ch/?start=1037398795&count=1
Exactly. Not every server has this or that module loaded and/or compiled into it. E.g, my host will not enable mod_expires, hence I have a http-equiv expires "workaround".
It would be good if people would stop trying to find excuses for
failing to follow best-practice. Already CERT security alert
CA-2000-02 was counselling *not* to send pages out without an explicit
HTTP charset specification. And if there is one, it /has/ to be
correct, since it overrides all other sources of information, and
there will be severe problems if the other sources are incompatible
with it.
Along the lines of what Mark Nottingham says: if your provider does
not offer the features which you need for doing the job properly,
*complain loudly*.
Furthermore, I send my page's language via a Content-Language header, yet Bobby complains I'm not specifying a language and insists I put <HTML lang="en"> etc, in my coding.
Bobby is only (trying to) apply the WAI rules as published. So
that report stands or falls by what the WAI actually calls for.
Sort of flies in the face of what Alan Flavell just wrote re: RFC 2616.
I'm not sure which detail you're referring to here. The charset issue
is clear enough: a particular document instance is in one and only one
character encoding[1] - the HTTP and meta (and ?xml encoding) are all
ways of specifying that encoding.
But there are subtle differences between HTTP language attribute, and
HTML language attributes. They aren't necessarily identical (though
the examples might appear somewhat contorted). For example, a Latin
primer aimed at an English-speaking audience contains both English and
Latin content, but would be negotiated in HTTP as an English-language
document. It would be of little interest to someone who was genuinely
seeking a Latin *document*.
best regards
[1] modulo the detail that you can refer to ASCII as iso-8859-anything
or as utf-8 if it suits you to do so, since they're indistinguishable
at that level.
Alan J. Flavell wrote: On Wed, 6 Apr 2005, Peter1968 wrote: Furthermore, I send my page's language via a Content-Language header, yet Bobby complains I'm not specifying a language and insists I put <HTML lang="en"> etc, in my coding.
Bobby is only (trying to) apply the WAI rules as published. So that report stands or falls by what the WAI actually calls for. http://www.w3.org/TR/WCAG10/#gl-abbreviated-and-foreign
Checkpoint 4.3 of that also calls for servers to set content language.
I've asked quite a few people and the consensus I've gotten back is
that's what the W3C is trying to say here.
I've been at Watchfire for nearly a year to get them to update things.
Still, it has real bearing on this thread, I guess, and I'll butt out
about here.
On Wed, 6 Apr 2005, Peter1968 wrote: Bobby is only (trying to) apply the WAI rules as published. So that report stands or falls by what the WAI actually calls for. http://www.w3.org/TR/WCAG10/#gl-abbreviated-and-foreign
The preamble to that, curiously, calls for one -or- the other:
Content developers should identify the predominant natural language
of a document's content (through markup or HTTP headers).
^^^^
Checkpoint 4.3 of that also calls for servers to set content language.
Curiously, neither 4.1 nor 4.3 say anything definite about emitting
content-language HTTP headers as such. What 4.3 is calling for is
that servers are configured to support content negotiation mechanisms:
that's a separate issue (which might lead the server to send a "Vary:"
header, but won't directly cause a Content-language header to be sent,
AFAIR).
I think Bobby is technically correct to report a violation of
checkpoint 4.3 itself if the HTML element does not have a "lang"
attribute (even though the wording of the preamble suggested that the
HTTP header would be an acceptable alternative, checkpoint 4.3 doesn't
actually allow it). Whether 4.3 is well formulated is a separate
discussion point, of course. However, this is only at priority 3.
If there is more than one language in the document, then a failure to
mark them up with HTML attributes wherever they occur would be a
violation of checkpoint 4.1, which is priority 1, on the other hand.
-- This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
by: Wolfgang May |
last post by:
Hi,
I have a problem with the HTTP implementation of the PEAR package:
I try to PUT an XML instance to an XML database (eXist), but it always
puts a binary:
<?php
require_once...
|
by: ben |
last post by:
I'm trying to write a web client script in python to log onto a web
page and pull some information off of it. The page has quite a few
behind the scenes http things going on that are making it...
|
by: sinister |
last post by:
After doing a websearch, it appears that it's OK to omit the "http:" to form
a relative URL. Are there any pitfalls to this?
For example, if there is a page
http://www.domain1.com/page1.html...
|
by: mike |
last post by:
regards:
How do I know that edition 1.0 or 1.1 the HTTP Server support?.....
Support of HTTP edition is decided by client end or server end?
Any positive suggestion is welcome.
thank you
May...
|
by: Paul Fi |
last post by:
im making a tcp server and tcp client to exchange Http messages is it
possible? if so how
from what i know that Http is an app protocol and sits above TCP so how
can i take advantage of that in...
|
by: Guest |
last post by:
Hi,
I unerstand that if you choose IIS to host your .Net Remotingcomponents with HTTP channel and SOAP formatter, you get thebuilt-in security and configuraion features of IIS. Also we canexpose it...
|
by: sushi |
last post by:
Hello,
I want to send a HTTP post request. The url will be given in the format
http://host:port/remainder-of-URL
where
host is the DNS name or IP address of the host where the receiver is...
|
by: Rudy Ko |
last post by:
Hi, all,
Anyone know how to issue a http request from VC or have a sample?
Thanks!!
Regards,
Rudy
|
by: WIWA |
last post by:
Hi,
I want to login to a password protected website and fetch the content of the
page behind. I have based my code on
http://weblogs.asp.net/jdennany/archive/2005/04/23/403971.aspx. When I use...
|
by: David Lozzi |
last post by:
Howdy,
I wrote a web service in .Net for my customer. My customer has another
vendor who now has to consume it but they are not using Visual Studio. Most
of their pages are jsp, and they said...
|
by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
|
by: BarryA |
last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
|
by: nemocccc |
last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
|
by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new...
| |