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Ticket #211 (closed design: fixed)

Opened 5 years ago

Last modified 3 years ago

Heuristic caching of URLs with query components

Reported by: mnot@pobox.com Owned by: julian.reschke@gmx.de
Priority: normal Milestone: 10
Component: p6-cache Severity: Active WG Document
Keywords: Cc:
Origin:

Description

2616 specified in 13.9

We note one exception to this rule: since some applications have traditionally used GETs and HEADs with query URLs (those containing a "?" in the rel_path part) to perform operations with significant side effects, caches MUST NOT treat responses to such URIs as fresh unless the server provides an explicit expiration time. This specifically means that responses from HTTP/1.0 servers for such URIs SHOULD NOT be taken from a cache.

  1. The second requirement really doesn't make much sense
  2. The first requirement isn't implemented by many caches, especially browser caches.
  3. The basis for this requirement -- that some scripts using query strings and GET have side effects -- is very old, and couched as a transitional requirement from HTTP/1.0
  4. There is no corresponding requirement for write-through for such requests.

Proposal: remove this requirement, replacing with an explanatory / historical note.

Attachments

i211.diff (1.3 KB) - added by julian.reschke@gmx.de 4 years ago.
proposed patch for part 6

Change History

Changed 4 years ago by julian.reschke@gmx.de

proposed patch for part 6

comment:1 Changed 4 years ago by mnot@pobox.com

  • Milestone changed from unassigned to 10

comment:2 Changed 4 years ago by julian.reschke@gmx.de

  • Owner set to julian.reschke@gmx.de

comment:3 Changed 4 years ago by julian.reschke@gmx.de

  • Status changed from new to assigned

comment:4 Changed 4 years ago by julian.reschke@gmx.de

From [828]:

add note about heuristic caching when query component is present (point out the history of it) (see #211)

comment:5 Changed 4 years ago by julian.reschke@gmx.de

  • Status changed from assigned to closed
  • Resolution set to incorporated

comment:6 Changed 4 years ago by mnot@pobox.com

  • Status changed from closed to reopened
  • Resolution incorporated deleted

comment:7 Changed 4 years ago by mnot@pobox.com

  • Status changed from reopened to closed
  • Resolution set to fixed

comment:8 Changed 3 years ago by mnot@pobox.com

  • Severity changed from Candidate WG Document to Active WG Document
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