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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 21392] New: - Protocol Violation: Expires should be overridden by Max-age directive
Date Tue, 08 Jul 2003 05:15:16 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21392

Protocol Violation: Expires should be overridden by Max-age directive

           Summary: Protocol Violation: Expires should be overridden by Max-
                    age directive
           Product: Apache httpd-2.0
           Version: 2.0.46
          Platform: All
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: mod_cache
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: sragavan@novell.com
                CC: sragavan@novell.com


When the proxy server sends max-age and Expires for a response like

     Cache-Control: max-age=10
     Expires: <some future date>

After 10 seconds this response should be stale in the proxy cache. But
The server still responds from the cache because of Expires header. It is not 
overridded as per the RFC.

"If a response includes both an Expires header and a max-age
directive, the max-age directive overrides the Expires header, even
if the Expires header is more restrictive. This rule allows an origin
server to provide, for a given response, a longer expiration time to
an HTTP/1.1 (or later) cache than to an HTTP/1.0 cache."

When max-age is specified, the expiration comparison should not include EXPIRES 
header.

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