Changeset 2136 for draft-ietf-httpbis/latest/p4-conditional.html
- Timestamp:
- 20/01/13 02:23:53 (10 years ago)
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draft-ietf-httpbis/latest/p4-conditional.html
r2133 r2136 700 700 those modifications. 701 701 </p> 702 <p id="rfc.section.2.1.p.8">A "use" of a validator occurs when either a client generates a request and includes the validator in a precondition or when 702 <p id="rfc.section.2.1.p.8">Likewise, a validator is weak if it is shared by two or more representations of a given resource at the same time, unless 703 those representations have identical representation data. For example, if the origin server sends the same validator for a 704 representation with a gzip content coding applied as it does for a representation with no content coding, then that validator 705 is weak. However, two simultaneous representations might share the same strong validator if they differ only in the representation 706 metadata, such as when two different media types are available for the same representation data. 707 </p> 708 <p id="rfc.section.2.1.p.9">A "use" of a validator occurs when either a client generates a request and includes the validator in a precondition or when 703 709 a server compares two validators. Weak validators are only usable in contexts that do not depend on exact equality of a representation's 704 710 payload body. Strong validators are usable and preferred for all conditional requests, including cache validation, partial
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