Changeset 1172 for draft-ietf-httpbis/latest/p4-conditional.xml
- Timestamp:
- 13/03/11 08:18:50 (10 years ago)
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- 1 edited
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draft-ietf-httpbis/latest/p4-conditional.xml
r1165 r1172 1066 1066 </artwork></figure> 1067 1067 <t> 1068 The exact meaning of this header field depends on the implementation 1069 of the origin server and the nature of the original resource. For 1070 files, it might be just the file system last-modified time. For 1071 representations with dynamically included parts, it might be the most recent 1072 of the set of last-modify times for its component parts. For database 1073 gateways, it might be the last-update time stamp of the record. For 1074 virtual objects, it might be the last time the internal state changed. 1068 A representation is typically the sum of many parts behind the 1069 resource interface. The last-modified time would usually be 1070 the most recent time that any of those parts were changed. 1071 How that value is determined for any given resource is an 1072 implementation detail beyond the scope of this specification. 1073 What matters to HTTP is how recipients of the Last-Modified 1074 header field can use its value to make conditional requests 1075 and test the validity of locally cached responses. 1075 1076 </t> 1076 1077 <t>
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