On 5/16/07, Joe Mun <[EMAIL PROTECTED]> wrote:
Hi guys... so according to the HTTP 1.1 spec (
http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html), 304 Not Modified
responses must include the ETag in the header.
Well, according to RFC 2616's section 10.3.5 on 304 Not Modified
"- ETag and/or Content-Location, if the header would have been sent
in a 200 response to the same request" , but the header is
sent in a 304 response.
That's why there's no ETag
I am serving a static text file, and the header only returns:
HTTP/1.x 304 Not Modified
Server: Apache-Coyote/1.1
Date: Wed, etc...
A 304 however returns If-None-Match which includes entity-tag , which
is the same as ETag for the requested resource.
RFC2616
14.26 If-None-Match
If-None-Match = "If-None-Match" ":" ( "*" | 1#entity-tag )
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Status=Not Modified - 304
If-None-Match= W/"13035-1163859776458"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Status=OK - 200
Etag= W/"13035-1163859776458"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Is there a reason that the Etag is not being included?
Because it is not supposed to be included --- see above.
Is there a way to
configure Tomcat to include this? My company is working with a caching
solution provider, and they are complaining about the missing ETag.
The caching provider should be looking for Http Status code.
If they status code is 200 , then they should look for Etag header, if
the status code is 304 then they should look for If-None-Match header.
thanks.
-Rashmi
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