Source: https://trac.ietf.org/trac/httpbis/browser/draft-ietf-httpbis/latest/p6-cache.html?rev=1860
Timestamp: 2020-02-29 13:21:48
Document Index: 336204194

Matched Legal Cases: ['art2', 'art2', 'art 2', 'art2', 'art2', 'art2', 'art 2', 'art2', 'art2', 'art2', 'art 2', 'art2', 'art1', 'art1', 'art 1', 'art1', 'art2', 'art2', 'art 2', 'art2']

source: draft-ietf-httpbis/latest/p6-cache.html @ 1860
<p id="rfc.section.4.3.p.1">When a cache receives a request that can be satisfied by a stored response that has a <a href="p2-semantics.html#header.vary" class="smpl">Vary</a> header field (<a href="p2-semantics.html#header.vary" title="Vary">Section 8.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.5"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>), it <em class="bcp14">MUST NOT</em> use that response unless all of the selecting header fields nominated by the Vary header field match in both the original
<p id="rfc.section.6.p.1">Because unsafe request methods (<a href="p2-semantics.html#safe.methods" title="Safe Methods">Section 5.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>) such as PUT, POST or DELETE have the potential for changing state on the origin server, intervening caches can use them
<p id="rfc.section.7.3.p.3">The field-value is an absolute date and time as defined by HTTP-date in <a href="p2-semantics.html#http.date" title="Date/Time Formats">Section 9.1</a> of <a href="#Part2" id="rfc.xref.Part2.7"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>; a sender <em class="bcp14">MUST</em> use the rfc1123-date format.
<div id="rfc.figure.u.14"></div><pre class="inline"> <a href="#imported.abnf" class="smpl">OWS</a> = &lt;OWS, defined in <a href="#Part1" id="rfc.xref.Part1.11"><cite title="HTTP/1.1, part 1: Message Routing and Syntax&#34;">[Part1]</cite></a>, <a href="p1-messaging.html#whitespace" title="Whitespace">Section 3.2.1</a>&gt;
<div id="rfc.figure.u.15"></div><pre class="inline"> <a href="#imported.abnf" class="smpl">HTTP-date</a> = &lt;HTTP-date, defined in <a href="#Part2" id="rfc.xref.Part2.8"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>, <a href="p2-semantics.html#http.date" title="Date/Time Formats">Section 9.1</a>&gt;