-<html xmlns="http://www.w3.org/TR/xhtml1/strict"><head><!--
- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
- This file is generated from xml source: DO NOT EDIT
- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
- --><title>mod_negotiation- Apache HTTP Server</title><link href="../style/manual.css" type="text/css" rel="stylesheet"/></head><body><blockquote><div align="center"><img src="../images/sub.gif" alt="[APACHE DOCUMENTATION]"/><h3>Apache HTTP Server Version 2.0</h3></div><h1 align="center">Apache Module mod_negotiation</h1><table cellspacing="1" cellpadding="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td valign="top"><span class="help">Description:</span></td><td>Provides for <a href="../content-negotiation.html">content negotiation</a></td></tr><tr><td><a href="module-dict.html#Status" class="help">Status:</a></td><td>Base</td></tr><tr><td><a href="module-dict.html#ModuleIdentifier" class="help">Module Identifier:</a></td><td>negotiation_module</td></tr></table></td></tr></table><h2>Summary</h2>
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
+<meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type" />
+<!--
+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+ This file is generated from xml source: DO NOT EDIT
+ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+ -->
+<title>mod_negotiation - Apache HTTP Server Version 2.5</title>
+<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
+<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
+<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" />
+<script src="../style/scripts/prettify.min.js" type="text/javascript">
+</script>
+
+<link href="../images/favicon.ico" rel="shortcut icon" /></head>
+<body>
+<div id="page-header">
+<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
+<p class="apache">Apache HTTP Server Version 2.5</p>
+<img alt="" src="../images/feather.png" /></div>
+<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
+<div id="path">
+<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.5</a> > <a href="./">Modules</a></div>
+<div id="page-content">
+<div id="preamble"><h1>Apache Module mod_negotiation</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_negotiation.html" title="English"> en </a> |
+<a href="../fr/mod/mod_negotiation.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
+<a href="../ja/mod/mod_negotiation.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a></p>
+</div>
+<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides for <a href="../content-negotiation.html">content negotiation</a></td></tr>
+<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
+<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>negotiation_module</td></tr>
+<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_negotiation.c</td></tr></table>
+<h3>Summary</h3>
+
<p>Content negotiation, or more accurately content selection, is
the selection of the document that best matches the clients
capabilities, from one of several available documents. There
<code>type-map</code>) which explicitly lists the files
containing the variants.</li>
- <li>A MultiViews search (enabled by the MultiViews <a href="core.html#options" class="directive"><code class="directive">Options</code></a>, where the server does an
- implicit filename pattern match, and choose from amongst the
+ <li>A Multiviews search (enabled by the <code>Multiviews</code>
+ <code class="directive"><a href="../mod/core.html#options">Options</a></code>), where the server does
+ an implicit filename pattern match, and choose from amongst the
results.</li>
</ul>
-<h2>Directives</h2><ul><li><a href="#cachenegotiateddocs">CacheNegotiatedDocs</a></li><li><a href="#forcelanguagepriority">ForceLanguagePriority</a></li><li><a href="#languagepriority">LanguagePriority</a></li></ul><p><strong>See also </strong></p><ul><li><a href="mod_mime.html#defaultlanguage" class="directive"><code class="directive">DefaultLanguage</code></a></li><li><a href="mod_mime.html#addencoding" class="directive"><code class="directive">AddEncoding</code></a></li><li><a href="mod_mime.html#addlanguage" class="directive"><code class="directive">AddLanguage</code></a></li><li><a href="mod_mime.html#addtype" class="directive"><code class="directive">AddType</code></a></li><li><a href="mod_mime.html#multiviewsmatch" class="directive"><code class="directive">MultiViewsMatch</code></a></li></ul><h2><a name="typemaps">Type maps</a></h2>
- <p>A type map has the same format as RFC822 mail headers. It
+</div>
+<div id="quickview"><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#typemaps">Type maps</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#multiviews">Multiviews</a></li>
+</ul><h3 class="directives">Directives</h3>
+<ul id="toc">
+<li><img alt="" src="../images/down.gif" /> <a href="#cachenegotiateddocs">CacheNegotiatedDocs</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#forcelanguagepriority">ForceLanguagePriority</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#languagepriority">LanguagePriority</a></li>
+</ul>
+<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_negotiation">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_negotiation">Report a bug</a></li></ul><h3>See also</h3>
+<ul class="seealso">
+<li><code class="directive"><a href="../mod/core.html#options">Options</a></code></li>
+<li><code class="module"><a href="../mod/mod_mime.html">mod_mime</a></code></li>
+<li><a href="../content-negotiation.html">Content
+Negotiation</a></li>
+<li><a href="../env.html">Environment Variables</a></li>
+<li><a href="#comments_section">Comments</a></li></ul></div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="typemaps" id="typemaps">Type maps</a></h2>
+ <p>A type map has a format similar to RFC822 mail headers. It
contains document descriptions separated by blank lines, with
lines beginning with a hash character ('#') treated as
comments. A document description consists of several header
and between the tokens of value. The headers allowed are: </p>
<dl>
- <dt>Content-Encoding:</dt>
-
+ <dt><code>Content-Encoding:</code></dt>
<dd>The encoding of the file. Apache only recognizes
- encodings that are defined by an <a href="mod_mime.html#addencoding" class="directive"><code class="directive">AddEncoding</code></a> directive.
+ encodings that are defined by an <code class="directive"><a href="../mod/mod_mime.html#addencoding">AddEncoding</a></code> directive.
This normally includes the encodings <code>x-compress</code>
for compress'd files, and <code>x-gzip</code> for gzip'd
files. The <code>x-</code> prefix is ignored for encoding
comparisons.</dd>
- <dt>Content-Language:</dt>
-
- <dd>The language of the variant, as an Internet standard
- language tag (RFC 1766). An example is <code>en</code>,
- meaning English.</dd>
-
- <dt>Content-Length:</dt>
+ <dt><code>Content-Language:</code></dt>
+ <dd>The language(s) of the variant, as an Internet standard
+ language tag (<a href="http://www.ietf.org/rfc/rfc1766.txt">RFC 1766</a>). An example is <code>en</code>,
+ meaning English. If the variant contains more than one
+ language, they are separated by a comma.</dd>
+ <dt><code>Content-Length:</code></dt>
<dd>The length of the file, in bytes. If this header is not
present, then the actual length of the file is used.</dd>
- <dt>Content-Type:</dt>
+ <dt><code>Content-Type:</code></dt>
<dd>
- The MIME media type of the document, with optional
- parameters. Parameters are separated from the media type
- and from one another by a semi-colon, with a syntax of
- <code>name=value</code>. Common parameters include:
+ The <a class="glossarylink" href="../glossary.html#mime-type" title="see glossary">MIME media type</a> of
+ the document, with optional parameters. Parameters are
+ separated from the media type and from one another by a
+ semi-colon, with a syntax of <code>name=value</code>. Common
+ parameters include:
<dl>
- <dt>level</dt>
-
+ <dt><code>level</code></dt>
<dd>an integer specifying the version of the media type.
For <code>text/html</code> this defaults to 2, otherwise
0.</dd>
- <dt>qs</dt>
-
- <dd>a floating-point number with a value in the range 0.0
- to 1.0, indicating the relative 'quality' of this variant
+ <dt><code>qs</code></dt>
+ <dd>a floating-point number with a value in the range 0[.000]
+ to 1[.000], indicating the relative 'quality' of this variant
compared to the other available variants, independent of
the client's capabilities. For example, a jpeg file is
usually of higher source quality than an ascii file if it
is attempting to represent a photograph. However, if the
resource being represented is ascii art, then an ascii
file would have a higher source quality than a jpeg file.
- All qs values are therefore specific to a given
+ All <code>qs</code> values are therefore specific to a given
resource.</dd>
</dl>
- Example:
-<blockquote><table cellpadding="10"><tr><td bgcolor="#eeeeee"><code>Content-Type: image/jpeg; qs=0.8</code></td></tr></table></blockquote>
+ <div class="example"><h3>Example</h3><p><code>
+ Content-Type: image/jpeg; qs=0.8
+ </code></p></div>
</dd>
- <dt>URI:</dt>
-
+ <dt><code>URI:</code></dt>
<dd>uri of the file containing the variant (of the given
media type, encoded with the given content encoding). These
are interpreted as URLs relative to the map file; they must
- be on the same server (!), and they must refer to files to
+ be on the same server, and they must refer to files to
which the client would be granted access if they were to be
requested directly.</dd>
- <dt>Body:</dt>
-
- <dd><p>New in Apache 2.0, the actual content of the resource may
+ <dt><code>Body:</code></dt>
+ <dd>The actual content of the resource may
be included in the type-map file using the Body header. This
header must contain a string that designates a delimiter for
- the body content. Then all following lines in the type map
+ the body content. Then all following lines in the type map
file will be considered part of the resource body until the
- delimiter string is found.</p>
-
- <p>Example:</p>
-<blockquote><table cellpadding="10"><tr><td bgcolor="#eeeeee"><code>
-Body:----xyz----<br>
-<html><br>
-<body><br>
-<p>Content of the page.</p><br>
-</body><br>
-</html><br>
-----xyz----
-</code></td></tr></table></blockquote>
+ delimiter string is found.
+
+ <div class="example"><h3>Example:</h3><p><code>
+ Body:----xyz----<br />
+ <html><br />
+ <body><br />
+ <p>Content of the page.</p><br />
+ </body><br />
+ </html><br />
+ ----xyz----
+ </code></p></div>
</dd>
</dl>
-<h2>MultiViews</h2>
- <p>A MultiViews search is enabled by the MultiViews <a href="core.html#options" class="directive"><code class="directive">Options</code></a>. If the server receives a
+ <p>Consider, for example, a resource called
+ <code>document.html</code> which is available in English, French,
+ and German. The files for each of these are called
+ <code>document.html.en</code>, <code>document.html.fr</code>, and
+ <code>document.html.de</code>, respectively. The type map file will
+ be called <code>document.html.var</code>, and will contain the
+ following:</p>
+
+ <div class="example"><p><code>
+ URI: document.html<br />
+ <br />
+ Content-language: en<br />
+ Content-type: text/html<br />
+ URI: document.html.en<br />
+ <br />
+ Content-language: fr<br />
+ Content-type: text/html<br />
+ URI: document.html.fr<br />
+ <br />
+ Content-language: de<br />
+ Content-type: text/html<br />
+ URI: document.html.de<br />
+ <br />
+
+ </code></p></div>
+
+ <p>All four of these files should be placed in the same directory,
+ and the <code>.var</code> file should be associated with the
+ <code>type-map</code> handler with an <code class="directive"><a href="../mod/mod_mime.html#addhandler">AddHandler</a></code> directive:</p>
+
+ <pre class="prettyprint lang-config">AddHandler type-map .var</pre>
+
+
+ <p>A request for <code>document.html.var</code> in this directory will
+ result in choosing the variant which most closely matches the language preference
+ specified in the user's <code>Accept-Language</code> request
+ header.</p>
+
+ <p>If <code>Multiviews</code> is enabled, and <code class="directive"><a href="../mod/mod_mime.html#multiviewsmatch">MultiviewsMatch</a></code> is set to "handlers" or "any", a request to
+ <code>document.html</code> will discover <code>document.html.var</code> and
+ continue negotiating with the explicit type map.</p>
+
+ <p>Other configuration directives, such as <code class="directive"><a href="../mod/mod_alias.html#alias">Alias</a></code> can be used to map <code>document.html</code> to
+ <code>document.html.var</code>.</p>
+
+</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="multiviews" id="multiviews">Multiviews</a></h2>
+ <p>A Multiviews search is enabled by the <code>Multiviews</code>
+ <code class="directive"><a href="../mod/core.html#options">Options</a></code>. If the server receives a
request for <code>/some/dir/foo</code> and
<code>/some/dir/foo</code> does <em>not</em> exist, then the
server reads the directory looking for all files named
content-encodings it would have if the client had asked for one
of them by name. It then chooses the best match to the client's
requirements, and returns that document.</p>
-<hr/><h2><a name="CacheNegotiatedDocs">CacheNegotiatedDocs</a> <a name="cachenegotiateddocs">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td nowrap="nowrap"><strong>Description: </strong></td><td>Allows content-negotiated documents to be
-cached by proxy servers</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>CacheNegotiatedDocs on|off</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>CacheNegotiatedDocs off</code></td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Status" class="help">Status:</a></td><td>Base</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Module" class="help">Module:</a></td><td>mod_negotiation</td></tr><tr><td nowrap="nowrap" align="left" valign="top"><a href="directive-dict.html#Compatibility" class="help">Compatibility:</a></td><td>The syntax changed in version 2.0.</td></tr></table></td></tr></table>
+
+ <p>The <code class="directive"><a href="../mod/mod_mime.html#multiviewsmatch">MultiviewsMatch</a></code>
+ directive configures whether Apache will consider files
+ that do not have content negotiation meta-information assigned
+ to them when choosing files.</p>
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="CacheNegotiatedDocs" id="CacheNegotiatedDocs">CacheNegotiatedDocs</a> <a name="cachenegotiateddocs" id="cachenegotiateddocs">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Allows content-negotiated documents to be
+cached by proxy servers</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CacheNegotiatedDocs On|Off</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CacheNegotiatedDocs Off</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_negotiation</td></tr>
+</table>
<p>If set, this directive allows content-negotiated documents
to be cached by proxy servers. This could mean that clients
behind those proxys could retrieve versions of the documents
the caching of negotiated documents, and this directive has no
effect in responses to HTTP/1.1 requests.</p>
- <p>Prior to version 2.0,
- <code class="directive">CacheNegotiatedDocs</code> did not take an
- argument; it was turned on by the presence of the directive by
- itself.</p>
-<hr/><h2><a name="ForceLanguagePriority">ForceLanguagePriority</a> <a name="forcelanguagepriority">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td nowrap="nowrap"><strong>Description: </strong></td><td>Action to take if a single acceptable document is not
-found</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>ForceLanguagePriority None|Prefer|Fallback [Prefer|Fallback]</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>ForceLanguagePriority None</code></td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config, virtual host, directory, .htaccess</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Override" class="help">Override:</a></td><td>FileInfo</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Status" class="help">Status:</a></td><td>Base</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Module" class="help">Module:</a></td><td>mod_negotiation</td></tr><tr><td nowrap="nowrap" align="left" valign="top"><a href="directive-dict.html#Compatibility" class="help">Compatibility:</a></td><td>Available in version 2.0.30 and later</td></tr></table></td></tr></table>
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="ForceLanguagePriority" id="ForceLanguagePriority">ForceLanguagePriority</a> <a name="forcelanguagepriority" id="forcelanguagepriority">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Action to take if a single acceptable document is not
+found</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>ForceLanguagePriority None|Prefer|Fallback [Prefer|Fallback]</code></td></tr>
+<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>ForceLanguagePriority Prefer</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
+<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_negotiation</td></tr>
+</table>
<p>The <code class="directive">ForceLanguagePriority</code> directive uses
- the given <a href="#languagepriority" class="directive"><code class="directive">LanguagePriority</code></a> to satisfy
- negotation where the server could otherwise not return a single
+ the given <code class="directive"><a href="#languagepriority">LanguagePriority</a></code> to satisfy
+ negotiation where the server could otherwise not return a single
matching document.</p>
<p><code>ForceLanguagePriority Prefer</code> uses
<code>LanguagePriority</code> to serve a one valid result, rather
than returning an HTTP result 300 (MULTIPLE CHOICES) when there
are several equally valid choices. If the directives below were
- given, and the user's Accept-Language header assigned en and de
- each as quality .500 (equally acceptable) then then first matching
- variant, en, will be served.</p>
+ given, and the user's <code>Accept-Language</code> header assigned
+ <code>en</code> and <code>de</code> each as quality <code>.500</code>
+ (equally acceptable) then the first matching variant, <code>en</code>,
+ will be served.</p>
+
+ <pre class="prettyprint lang-config">LanguagePriority en fr de
+ForceLanguagePriority Prefer</pre>
-<blockquote><table cellpadding="10"><tr><td bgcolor="#eeeeee"><code>
- LanguagePriority en fr de<br>
- ForceLanguagePriority Prefer
-</code></td></tr></table></blockquote>
<p><code>ForceLanguagePriority Fallback</code> uses
- <code>LanguagePriority</code> to serve a valid result, rather than
- returning an HTTP result 406 (NOT ACCEPTABLE). If the directives
- below were given, and the user's Accept-Language only permitted an
- es language response, but such a variant isn't found, then the
- first variant from the LanguagePriority list below will be
- served.</p>
-
-<blockquote><table cellpadding="10"><tr><td bgcolor="#eeeeee"><code>
- LanguagePriority en fr de<br>
- ForceLanguagePriority Fallback
-</code></td></tr></table></blockquote>
-
- <p>Both options, Prefer and Fallback, may be specified, so either the
- first matching variant from LanguagePriority will be served if more
- that one variant is acceptable, or first available document will be
- served if none of the variants matched the client's acceptable list of
- languages.</p>
-<hr/><h2><a name="LanguagePriority">LanguagePriority</a> <a name="languagepriority">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td nowrap="nowrap"><strong>Description: </strong></td><td>The precendence of language variants for cases where
-the client does not express a preference</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>LanguagePriority <em>MIME-lang</em> [<em>MIME-lang</em>] ...</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config, virtual host, directory, .htaccess</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Override" class="help">Override:</a></td><td>FileInfo</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Status" class="help">Status:</a></td><td>Base</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Module" class="help">Module:</a></td><td>mod_negotiation</td></tr></table></td></tr></table>
+ <code class="directive"><a href="#languagepriority">LanguagePriority</a></code> to
+ serve a valid result, rather than returning an HTTP result 406
+ (NOT ACCEPTABLE). If the directives below were given, and the user's
+ <code>Accept-Language</code> only permitted an <code>es</code>
+ language response, but such a variant isn't found, then the first
+ variant from the <code class="directive"><a href="#languagepriority">LanguagePriority</a></code> list below will be served.</p>
+
+ <pre class="prettyprint lang-config">LanguagePriority en fr de
+ForceLanguagePriority Fallback</pre>
+
+
+ <p>Both options, <code>Prefer</code> and <code>Fallback</code>, may be
+ specified, so either the first matching variant from <code class="directive"><a href="#languagepriority">LanguagePriority</a></code> will be served if
+ more than one variant is acceptable, or first available document will
+ be served if none of the variants matched the client's acceptable list
+ of languages.</p>
+
+<h3>See also</h3>
+<ul>
+<li><code class="directive"><a href="../mod/mod_mime.html#addlanguage">AddLanguage</a></code></li>
+</ul>
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="LanguagePriority" id="LanguagePriority">LanguagePriority</a> <a name="languagepriority" id="languagepriority">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>The precedence of language variants for cases where
+the client does not express a preference</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>LanguagePriority <var>MIME-lang</var> [<var>MIME-lang</var>]
+...</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
+<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>FileInfo</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_negotiation</td></tr>
+</table>
<p>The <code class="directive">LanguagePriority</code> sets the precedence
of language variants for the case where the client does not
- express a preference, when handling a MultiViews request. The list
- of <em>MIME-lang</em> are in order of decreasing preference.
- Example:</p>
+ express a preference, when handling a Multiviews request. The list
+ of <var>MIME-lang</var> are in order of decreasing preference.</p>
+
+ <pre class="prettyprint lang-config">LanguagePriority en fr de</pre>
-<blockquote><table cellpadding="10"><tr><td bgcolor="#eeeeee"><code>LanguagePriority en fr de</code></td></tr></table></blockquote>
<p>For a request for <code>foo.html</code>, where
<code>foo.html.fr</code> and <code>foo.html.de</code> both
then <code>foo.html.fr</code> would be returned.</p>
<p>Note that this directive only has an effect if a 'best'
- language cannot be determined by any other means or the <a href="#forcelanguagepriority" class="directive"><code class="directive">ForceLanguagePriority</code></a> directive
- is not <code>None</code>. Correctly implemented HTTP/1.1 requests
- will mean this directive has no effect.</p>
-<hr/></blockquote><h3 align="center">Apache HTTP Server Version 2.0</h3><a href="./"><img src="../images/index.gif" alt="Index"/></a><a href="../"><img src="../images/home.gif" alt="Home"/></a></body></html>
\ No newline at end of file
+ language cannot be determined by any other means or the <code class="directive"><a href="#forcelanguagepriority">ForceLanguagePriority</a></code> directive
+ is not <code>None</code>. In general, the client determines the
+ language preference, not the server.</p>
+
+<h3>See also</h3>
+<ul>
+<li><code class="directive"><a href="../mod/mod_mime.html#addlanguage">AddLanguage</a></code></li>
+</ul>
+</div>
+</div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="../en/mod/mod_negotiation.html" title="English"> en </a> |
+<a href="../fr/mod/mod_negotiation.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
+<a href="../ja/mod/mod_negotiation.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a></p>
+</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
+<script type="text/javascript"><!--//--><![CDATA[//><!--
+var comments_shortname = 'httpd';
+var comments_identifier = 'http://httpd.apache.org/docs/trunk/mod/mod_negotiation.html';
+(function(w, d) {
+ if (w.location.hostname.toLowerCase() == "httpd.apache.org") {
+ d.write('<div id="comments_thread"><\/div>');
+ var s = d.createElement('script');
+ s.type = 'text/javascript';
+ s.async = true;
+ s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier;
+ (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s);
+ }
+ else {
+ d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>');
+ }
+})(window, document);
+//--><!]]></script></div><div id="footer">
+<p class="apache">Copyright 2017 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
+<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!--
+if (typeof(prettyPrint) !== 'undefined') {
+ prettyPrint();
+}
+//--><!]]></script>
+</body></html>
\ No newline at end of file