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Subject svn commit: r1517551 - /httpd/httpd/trunk/docs/manual/mod/mod_deflate.xml
Date Mon, 26 Aug 2013 14:54:17 GMT
Author: covener
Date: Mon Aug 26 14:54:17 2013
New Revision: 1517551

remove cache-busting workarounds for ancient browsers.  Add more mimetypes to
the "simple" example.


Modified: httpd/httpd/trunk/docs/manual/mod/mod_deflate.xml
--- httpd/httpd/trunk/docs/manual/mod/mod_deflate.xml (original)
+++ httpd/httpd/trunk/docs/manual/mod/mod_deflate.xml Mon Aug 26 14:54:17 2013
@@ -38,38 +38,11 @@ client</description>
 <seealso><a href="../filter.html">Filters</a></seealso>
 <section id="recommended"><title>Sample Configurations</title>
-    <p>This is a simple sample configuration for the impatient.</p>
+    <p>This is a simple configuration that compresses common text-based content types.</p>
     <example><title>Compress only a few types</title>
     <highlight language="config">
-      AddOutputFilterByType DEFLATE text/html text/plain text/xml
-      </highlight>
-    </example>
-    <p>The following configuration, while resulting in more compressed content,
-    is also much more complicated.  Do not use this unless you fully understand
-    all the configuration details.</p>
-    <example><title>Compress everything except images</title>
-    <highlight language="config">
-&lt;Location /&gt;
-    # Insert filter
-    SetOutputFilter DEFLATE
-    # Netscape 4.x has some problems...
-    BrowserMatch ^Mozilla/4         gzip-only-text/html
-    # Netscape 4.06-4.08 have some more problems
-    BrowserMatch ^Mozilla/4\.0[678] no-gzip
-    # MSIE masquerades as Netscape, but it is fine
-    BrowserMatch \bMSIE             !no-gzip !gzip-only-text/html
-    # Don't compress images
-    SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
-    # Make sure proxies don't deliver the wrong content
-    Header append Vary User-Agent env=!dont-vary
+      AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript
@@ -85,14 +58,9 @@ client</description>
       <highlight language="config">
         SetOutputFilter DEFLATE
+        SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip 
-      <p>Some popular browsers cannot handle compression of all content
-      so you may want to set the <code>gzip-only-text/html</code> note to
-      <code>1</code> to only allow html files to be compressed (see
-      below). If you set this to <em>anything but <code>1</code></em>
-      will be ignored.</p>
       <p>If you want to restrict the compression to particular MIME types
       in general, you may use the <directive module="mod_filter"
       >AddOutputFilterByType</directive> directive. Here is an example of
@@ -105,37 +73,6 @@ client</description>
-      <p>For browsers that have problems even with compression of all file
-      types, use the <directive module="mod_setenvif"
-      >BrowserMatch</directive> directive to set the <code>no-gzip</code>
-      note for that particular browser so that no compression will be
-      performed. You may combine <code>no-gzip</code> with <code
-      >gzip-only-text/html</code> to get the best results. In that case
-      the former overrides the latter. Take a look at the following
-      excerpt from the <a href="#recommended">configuration example</a>
-      defined in the section above:</p>
-      <highlight language="config">
-BrowserMatch ^Mozilla/4         gzip-only-text/html
-BrowserMatch ^Mozilla/4\.0[678] no-gzip
-BrowserMatch \bMSIE             !no-gzip !gzip-only-text/html
-      </highlight>
-      <p>At first we probe for a <code>User-Agent</code> string that
-      indicates a Netscape Navigator version of 4.x. These versions
-      cannot handle compression of types other than
-      <code>text/html</code>. The versions 4.06, 4.07 and 4.08 also
-      have problems with decompressing html files. Thus, we completely
-      turn off the deflate filter for them.</p>
-      <p>The third <directive module="mod_setenvif">BrowserMatch</directive>
-      directive fixes the guessed identity of the user agent, because
-      the Microsoft Internet Explorer identifies itself also as "Mozilla/4"
-      but is actually able to handle requested compression. Therefore we
-      match against the additional string "MSIE" (<code>\b</code> means
-      "word boundary") in the <code>User-Agent</code> Header and turn off
-      the restrictions defined before.</p>
         The <code>DEFLATE</code> filter is always inserted after RESOURCE
         filters like PHP or SSI. It never touches internal subrequests.

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