<p>This module <em>requires</em> the service of <code class="module"><a href="../mod/mod_proxy.html">mod_proxy</a></code>. It provides the features used for
Do not set this unless you know you need it, as it forwards
sensitive information!</dd>
<dt>proxy-sendcl</dt>
<dd>HTTP/1.0 required all HTTP requests that include a body
(e.g. POST requests) to include a <var>Content-Length</var>
header. This environment variable forces the Apache proxy to
send this header to the backend server, regardless of what the
Client sent to the proxy. It ensures compatibility when
proxying for an HTTP/1.0 or unknown backend. However, it
may require the entire request to be buffered by the proxy,
so it becomes very inefficient for large requests.</dd>
<dt>proxy-sendchunks or proxy-sendchunked</dt>
<dd>This is the opposite of <var>proxy-sendcl</var>. It allows
request bodies to be sent to the backend using chunked transfer
encoding. This allows the request to be efficiently streamed,
but requires that the backend server supports HTTP/1.1.</dd>
<dt>proxy-interim-response</dt>
<dd>This variable takes values <code>RFC</code> or
<code>Suppress</code>. Earlier httpd versions would suppress
HTTP interim (1xx) responses sent from the backend. This is
technically a violation of the HTTP protocol. In practice,
if a backend sends an interim response, it may itself be
extending the protocol in a manner we know nothing about,
or just broken. So this is now configurable: set
<code>proxy-interim-response RFC</code> to be fully protocol
compliant, or <code>proxy-interim-response Suppress</code>
to suppress interim responses.</dd>
</dl>
</div>
</div>
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<p class="apache">Copyright 2007 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>
