Ignore:
Timestamp:
Mar 13, 2011, 12:18:50 AM (9 years ago)
Author:
fielding@…
Message:

editorial: remove inappropriate implementation details from
the definition of last-modified.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • draft-ietf-httpbis/latest/p4-conditional.xml

    r1165 r1172  
    10661066</artwork></figure>
    10671067<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.
    10751076</t>
    10761077<t>
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