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put the entire list into alphabetical order. git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@83180 13f79535-47bb-0310-9956-ffa450edef68
65 lines
1.9 KiB
Plaintext
65 lines
1.9 KiB
Plaintext
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<TITLE>Special Purpose Environment Variables</TITLE>
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</HEAD>
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<!-- Background white, links blue (unvisited), navy (visited), red (active) -->
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<BODY
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BGCOLOR="#FFFFFF"
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TEXT="#000000"
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LINK="#0000FF"
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VLINK="#000080"
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ALINK="#FF0000"
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>
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<!--#include virtual="header.html" -->
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<H1 ALIGN="CENTER">Special Purpose Environment Variables</H1>
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<P>
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Interoperability problems have led to the introduction of
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mechanisms to modify the way Apache behaves when talking to particular
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clients. To make these mechanisms as flexible as possible, they
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are invoked by defining environment variables, typically with
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<A HREF="mod/mod_browser.html#browsermatch">BrowserMatch</A>, though
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<A HREF="mod/mod_env.html#setenv">SetEnv</A> and
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<A HREF="mod/mod_env.html#passenv">PassEnv</A> could also be used, for
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example.
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</P>
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<H2>downgrade-1.0</H2>
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<P>
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This forces the request to be treated as a HTTP/1.0 request even if it
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was in a later dialect.
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</P>
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<H2>force-no-vary</H2>
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<P>
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This causes any <CODE>Vary</CODE> fields to be removed from the response
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header before it is sent back to the client. Some clients don't
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interpret this field correctly (see the
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<A HREF="misc/known_client_problems.html">known client problems</A>
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page); setting this variable can work around this problem. Setting
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this variable also implies <STRONG>force-response-1.0</STRONG>.
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</P>
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<H2>force-response-1.0</H2>
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<P>
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This forces an HTTP/1.0 response when set. It was originally implemented as a
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result of a problem with AOL's proxies. Some clients may not behave correctly
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when given an HTTP/1.1 response, and this can be used to interoperate with
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them.
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</P>
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<H2>nokeepalive</H2>
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<P>
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This disables <A HREF="mod/core.html#keepalive">KeepAlive</A> when set. Because
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of problems with Netscape 2.x and KeepAlive, we recommend the following
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directive be used:
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</P>
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<PRE>
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BrowserMatch Mozilla/2 nokeepalive
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</PRE>
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<!--#include virtual="footer.html" -->
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</BODY>
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</HTML>
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