Changeset 366 for draft-ietf-httpbis/latest/p6-cache.html
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- 13/11/08 18:53:12 (14 years ago)
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draft-ietf-httpbis/latest/p6-cache.html
r364 r366 1245 1245 are calculated as specified in <a href="#age.calculations" title="Age Calculations">Section 4.3</a>. 1246 1246 </p> 1247 <div id="rfc.figure.u.12"></div><pre class="inline"><span id="rfc.iref.g.1"></span><span id="rfc.iref.g.2"></span> <a href="#header.age" class="smpl">Age</a> = "Age" <a href="#notation" class="smpl">BWS</a>":" <a href="#notation" class="smpl">OWS</a> <a href="#header.age" class="smpl">Age-v</a>1247 <div id="rfc.figure.u.12"></div><pre class="inline"><span id="rfc.iref.g.1"></span><span id="rfc.iref.g.2"></span> <a href="#header.age" class="smpl">Age</a> = "Age" ":" <a href="#notation" class="smpl">OWS</a> <a href="#header.age" class="smpl">Age-v</a> 1248 1248 <a href="#header.age" class="smpl">Age-v</a> = <a href="#rule.delta-seconds" class="smpl">delta-seconds</a> 1249 1249 </pre><div id="rule.delta-seconds"> … … 1270 1270 a specific cache. 1271 1271 </p> 1272 <div id="rfc.figure.u.14"></div><pre class="inline"><span id="rfc.iref.g.4"></span><span id="rfc.iref.g.5"></span><span id="rfc.iref.g.6"></span><span id="rfc.iref.g.7"></span><span id="rfc.iref.g.8"></span><span id="rfc.iref.g.9"></span> <a href="#header.cache-control" class="smpl">Cache-Control</a> = "Cache-Control" <a href="#notation" class="smpl">BWS</a>":" <a href="#notation" class="smpl">OWS</a> <a href="#header.cache-control" class="smpl">Cache-Control-v</a>1272 <div id="rfc.figure.u.14"></div><pre class="inline"><span id="rfc.iref.g.4"></span><span id="rfc.iref.g.5"></span><span id="rfc.iref.g.6"></span><span id="rfc.iref.g.7"></span><span id="rfc.iref.g.8"></span><span id="rfc.iref.g.9"></span> <a href="#header.cache-control" class="smpl">Cache-Control</a> = "Cache-Control" ":" <a href="#notation" class="smpl">OWS</a> <a href="#header.cache-control" class="smpl">Cache-Control-v</a> 1273 1273 <a href="#header.cache-control" class="smpl">Cache-Control-v</a> = 1#<a href="#header.cache-control" class="smpl">cache-directive</a> 1274 1274 … … 1575 1575 <p id="rfc.section.16.3.p.3">The format is an absolute date and time as defined by HTTP-date in <a href="p1-messaging.html#full.date" title="Full Date">Section 3.3.1</a> of <a href="#Part1" id="rfc.xref.Part1.21"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>; it <em class="bcp14">MUST</em> be sent in rfc1123-date format. 1576 1576 </p> 1577 <div id="rfc.figure.u.16"></div><pre class="inline"><span id="rfc.iref.g.10"></span><span id="rfc.iref.g.11"></span> <a href="#header.expires" class="smpl">Expires</a> = "Expires" <a href="#notation" class="smpl">BWS</a>":" <a href="#notation" class="smpl">OWS</a> <a href="#header.expires" class="smpl">Expires-v</a>1577 <div id="rfc.figure.u.16"></div><pre class="inline"><span id="rfc.iref.g.10"></span><span id="rfc.iref.g.11"></span> <a href="#header.expires" class="smpl">Expires</a> = "Expires" ":" <a href="#notation" class="smpl">OWS</a> <a href="#header.expires" class="smpl">Expires-v</a> 1578 1578 <a href="#header.expires" class="smpl">Expires-v</a> = <a href="#abnf.dependencies" class="smpl">HTTP-date</a> 1579 1579 </pre><p id="rfc.section.16.3.p.5">An example of its use is</p> … … 1603 1603 some systems <em class="bcp14">MAY</em> require that behavior be consistent with the directives. 1604 1604 </p> 1605 <div id="rfc.figure.u.18"></div><pre class="inline"><span id="rfc.iref.g.12"></span><span id="rfc.iref.g.13"></span><span id="rfc.iref.g.14"></span><span id="rfc.iref.g.15"></span> <a href="#header.pragma" class="smpl">Pragma</a> = "Pragma" <a href="#notation" class="smpl">BWS</a>":" <a href="#notation" class="smpl">OWS</a> <a href="#header.pragma" class="smpl">Pragma-v</a>1605 <div id="rfc.figure.u.18"></div><pre class="inline"><span id="rfc.iref.g.12"></span><span id="rfc.iref.g.13"></span><span id="rfc.iref.g.14"></span><span id="rfc.iref.g.15"></span> <a href="#header.pragma" class="smpl">Pragma</a> = "Pragma" ":" <a href="#notation" class="smpl">OWS</a> <a href="#header.pragma" class="smpl">Pragma-v</a> 1606 1606 <a href="#header.pragma" class="smpl">Pragma-v</a> = 1#<a href="#header.pragma" class="smpl">pragma-directive</a> 1607 1607 <a href="#header.pragma" class="smpl">pragma-directive</a> = "no-cache" / <a href="#header.pragma" class="smpl">extension-pragma</a> … … 1631 1631 response is the appropriate representation. See <a href="#caching.negotiated.responses" title="Caching Negotiated Responses">Section 8</a> for use of the Vary header field by caches. 1632 1632 </p> 1633 <div id="rfc.figure.u.19"></div><pre class="inline"><span id="rfc.iref.g.16"></span><span id="rfc.iref.g.17"></span> <a href="#header.vary" class="smpl">Vary</a> = "Vary" <a href="#notation" class="smpl">BWS</a>":" <a href="#notation" class="smpl">OWS</a> <a href="#header.vary" class="smpl">Vary-v</a>1633 <div id="rfc.figure.u.19"></div><pre class="inline"><span id="rfc.iref.g.16"></span><span id="rfc.iref.g.17"></span> <a href="#header.vary" class="smpl">Vary</a> = "Vary" ":" <a href="#notation" class="smpl">OWS</a> <a href="#header.vary" class="smpl">Vary-v</a> 1634 1634 <a href="#header.vary" class="smpl">Vary-v</a> = "*" / 1#<a href="#abnf.dependencies" class="smpl">field-name</a> 1635 1635 </pre><p id="rfc.section.16.5.p.3">An HTTP/1.1 server <em class="bcp14">SHOULD</em> include a Vary header field with any cacheable response that is subject to server-driven negotiation. Doing so allows a cache … … 1657 1657 </p> 1658 1658 <p id="rfc.section.16.6.p.2">Warning headers are sent with responses using:</p> 1659 <div id="rfc.figure.u.20"></div><pre class="inline"><span id="rfc.iref.g.18"></span><span id="rfc.iref.g.19"></span><span id="rfc.iref.g.20"></span><span id="rfc.iref.g.21"></span><span id="rfc.iref.g.22"></span><span id="rfc.iref.g.23"></span><span id="rfc.iref.g.24"></span> <a href="#header.warning" class="smpl">Warning</a> = "Warning" <a href="#notation" class="smpl">BWS</a>":" <a href="#notation" class="smpl">OWS</a> <a href="#header.warning" class="smpl">Warning-v</a>1659 <div id="rfc.figure.u.20"></div><pre class="inline"><span id="rfc.iref.g.18"></span><span id="rfc.iref.g.19"></span><span id="rfc.iref.g.20"></span><span id="rfc.iref.g.21"></span><span id="rfc.iref.g.22"></span><span id="rfc.iref.g.23"></span><span id="rfc.iref.g.24"></span> <a href="#header.warning" class="smpl">Warning</a> = "Warning" ":" <a href="#notation" class="smpl">OWS</a> <a href="#header.warning" class="smpl">Warning-v</a> 1660 1660 <a href="#header.warning" class="smpl">Warning-v</a> = 1#<a href="#header.warning" class="smpl">warning-value</a> 1661 1661
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