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Posted to bugs@httpd.apache.org by bu...@apache.org on 2008/05/17 08:53:12 UTC
DO NOT REPLY [Bug 45023] New: DEFLATE preventing 304 NOT MODIFIED
response
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Summary: DEFLATE preventing 304 NOT MODIFIED response
Product: Apache httpd-2
Version: 2.2.8
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_deflate
AssignedTo: bugs@httpd.apache.org
ReportedBy: noah@dizzler.com
On my server, I recently added the DEFLATE filter for all
application/x-javascript files, and noticed that apache has stopped sending 304
NOT MODIFIED on ALL my js files *always*.
Observe this header trace:
-----------------------------------------
GET /main.js HTTP/1.1
Host: xxxxxxxxxxxxx
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.14)
Gecko/20080404 Firefox/2.0.0.14
Accept: */*
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
If-Modified-Since: Mon, 12 May 2008 16:09:00 GMT
If-None-Match: "44d0ac3fd1f00"-gzip
Cache-Control: max-age=0
HTTP/1.x 200 OK
Date: Sat, 17 May 2008 06:09:25 GMT
Server: Apache
Last-Modified: Mon, 12 May 2008 16:09:00 GMT
Etag: "44d0ac3fd1f00"-gzip
Accept-Ranges: bytes
Cache-Control: max-age=86400, must-revalidate, private
Expires: Sun, 18 May 2008 06:09:25 GMT
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 9797
Keep-Alive: timeout=2, max=299
Connection: Keep-Alive
Content-Type: application/x-javascript
-----------------------------------------
It seems to me, that a 304 NOT MODIFIED would have been the appropriate
response here.
Before I added DEFLATE to javascript files, the above response was always 304
NOT MODIFIED (except the first one).
Now with deflate, it is *always* 200 OK.
Is this by design, or is this a bug?
One thing to mention is - I have both mod_deflate and mod_expires statically
compiled into httpd.
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Re: DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by rahul <ra...@Sun.COM>.
| >Created an attachment (id=22453)
| > --> (https://issues.apache.org/bugzilla/attachment.cgi?id=22453)
| >A POC slightly better than the above conf lines,
| >
| >Adds an input filter ETAG that can be used like below, along with
| >DEFLATE
| >to let apache recognize ($1)-gzip as $1
| >
| >AddInputFilter ETAG .txt
| >AddOutputFilterByType DEFLATE text/plain
|
| Neat little fix (insofar as that problem admits of a neat fix).
| But I dislike using an input filter just to manipulate request headers
| (that's what processing hooks are for), and the sysop shouldn't
| have to configure it.
|
| Does something bad happen if you put the check in a post_read_request
| hook instead?
Thanks for the pointer :). I will update the patch.
rahul
--
1. e4 _
Re: DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by Nick Kew <ni...@webthing.com>.
On 19 Aug 2008, at 14:41, bugzilla@apache.org wrote:
> --- Comment #5 from rahul <ra...@sun.com> 2008-08-19 06:41:51 PST ---
> Created an attachment (id=22453)
> --> (https://issues.apache.org/bugzilla/attachment.cgi?id=22453)
> A POC slightly better than the above conf lines,
>
> Adds an input filter ETAG that can be used like below, along with
> DEFLATE
> to let apache recognize ($1)-gzip as $1
>
> AddInputFilter ETAG .txt
> AddOutputFilterByType DEFLATE text/plain
Neat little fix (insofar as that problem admits of a neat fix).
But I dislike using an input filter just to manipulate request headers
(that's what processing hooks are for), and the sysop shouldn't
have to configure it.
Does something bad happen if you put the check in a post_read_request
hook instead?
--
Nick Kew
DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #5 from rahul <ra...@sun.com> 2008-08-19 06:41:51 PST ---
Created an attachment (id=22453)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=22453)
A POC slightly better than the above conf lines,
Adds an input filter ETAG that can be used like below, along with DEFLATE
to let apache recognize ($1)-gzip as $1
AddInputFilter ETAG .txt
AddOutputFilterByType DEFLATE text/plain
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Roy T. Fielding <fi...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #14 from Roy T. Fielding <fi...@apache.org> 2009-04-03 18:41:47 PST ---
This bug was added in 2.2.8 in a failed attempt to address Bug 39727.
Since a real fix will require extensive changes, I have reverted the
change in
http://svn.apache.org/viewvc?view=rev&revision=761835
Note: if you are patching a released version of the source code,
then extract the patch from the original change
http://svn.apache.org/viewvc?view=rev&revision=608849
and use patch -R to apply it in reverse.
Meanwhile, the original bug will still be tracked as issue 39727.
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Sidharth Kshatriya <si...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sid.kshatriya@gmail.com
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Franklin Tse <pe...@hotmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |peaceable_whale@hotmail.com
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #11 from rahul <ra...@sun.com> 2008-09-18 10:27:15 PST ---
You will need both. This patch expects the other to have been applied (this is
already applied on trunk).
Also please use the dev@httpd.apache.org for questions.
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[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Yann Ylavic <yl...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jcea@jcea.es
--- Comment #18 from Yann Ylavic <yl...@gmail.com> ---
*** Bug 56354 has been marked as a duplicate of this bug. ***
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Re: [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by Tim Bannister <is...@jellybaby.net>.
On 9 Jul 2013, at 15:56, Tim Bannister <is...@jellybaby.net> wrote:
> On 9 Jul 2013, at 15:49, Eric Covener <co...@gmail.com> wrote:
>
>> What to do in 2.4? Maybe still early enough to still change 2.4 behavior?
>
> Roy Fielding links this to bug #39727…
>
> I still want to push for gzip Transfer-Encoding: in trunk (and maybe 2.4 as well). It works, but my code is far too ugly to consider committing:
I may as well add that there are two reasons for wanting to see this in httpd.
First, I think availability in httpd will (slowly) drive adoption by clients because of httpd's share of the market. There's no real issue with legacy clients because existing browsers don't request gzip transfer-encoding (proxies are more of an issue).
Second, most webservers treat transfer-encoding as two states (identity or chunked) and some even store this in a bool. Retrofitting compressed transfer encodings into this kind of code is much more of a challenge. I think httpd is the only webserver (or reverse proxy) with the foundations for this kind of enhancement.
--
Tim Bannister – isoma@jellybaby.net
Re: [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by Tim Bannister <is...@jellybaby.net>.
On 9 Jul 2013, at 15:49, Eric Covener <co...@gmail.com> wrote:
> What to do in 2.4? Maybe still early enough to still change 2.4 behavior?
Roy Fielding links this to bug #39727…
I still want to push for gzip Transfer-Encoding: in trunk (and maybe 2.4 as well). It works, but my code is far too ugly to consider committing:
https://issues.apache.org/bugzilla/show_bug.cgi?id=52860
Any help is definitely welcome.
--
Tim Bannister – isoma@jellybaby.net
Fwd: [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by Eric Covener <co...@gmail.com>.
What to do in 2.4? Maybe still early enough to still change 2.4 behavior?
---------- Forwarded message ----------
From: <bu...@apache.org>
Date: Sun, Jun 23, 2013 at 1:41 PM
Subject: [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
To: bugs@httpd.apache.org
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Eric Covener <co...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #16 from Eric Covener <co...@gmail.com> ---
Was this ever resolved in trunk/2.4?
Alias /deflate /home/covener/SRC/httpd-trunk/built/htdocs/index.html
<Location /deflate>
SetOutputFilter DEFLATE
</location>
$ wget --header="Accept-Encoding: gzip" -S http://localhost/deflate
-O/dev/null 2>&1 |grep ETag
ETag: "58c5-4b26c6f28ce80-gzip"
$ wget --header='If-None-Match: "58c5-4b26c6f28ce80-gzip"'
--header="Accept-Encoding: gzip" -S http://localhost/deflate -O/dev/null 2>&1
--2013-06-23 13:39:47-- http://localhost/deflate
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:80... connected.
HTTP request sent, awaiting response...
HTTP/1.1 200 OK
Date: Sun, 23 Jun 2013 17:39:47 GMT
Server: Apache/2.5.0-dev (Unix) OpenSSL/1.0.1c
Last-Modified: Wed, 23 Nov 2011 20:04:58 GMT
ETag: "58c5-4b26c6f28ce80-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 206
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html
covener@cov-w520:~/SRC/httpd-trunk$ wget --header='If-None-Match:
"58c5-4b26c6f28ce80"' --header="Accept-Encoding: gzip" -S
http://localhost/deflate -O/dev/null 2>&1|grep HTTP/1.1
HTTP/1.1 304 Not Modified
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Eric Covener
covener@gmail.com
[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Eric Covener <co...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #16 from Eric Covener <co...@gmail.com> ---
Was this ever resolved in trunk/2.4?
Alias /deflate /home/covener/SRC/httpd-trunk/built/htdocs/index.html
<Location /deflate>
SetOutputFilter DEFLATE
</location>
$ wget --header="Accept-Encoding: gzip" -S http://localhost/deflate
-O/dev/null 2>&1 |grep ETag
ETag: "58c5-4b26c6f28ce80-gzip"
$ wget --header='If-None-Match: "58c5-4b26c6f28ce80-gzip"'
--header="Accept-Encoding: gzip" -S http://localhost/deflate -O/dev/null 2>&1
--2013-06-23 13:39:47-- http://localhost/deflate
Resolving localhost (localhost)... 127.0.0.1
Connecting to localhost (localhost)|127.0.0.1|:80... connected.
HTTP request sent, awaiting response...
HTTP/1.1 200 OK
Date: Sun, 23 Jun 2013 17:39:47 GMT
Server: Apache/2.5.0-dev (Unix) OpenSSL/1.0.1c
Last-Modified: Wed, 23 Nov 2011 20:04:58 GMT
ETag: "58c5-4b26c6f28ce80-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 206
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html
covener@cov-w520:~/SRC/httpd-trunk$ wget --header='If-None-Match:
"58c5-4b26c6f28ce80"' --header="Accept-Encoding: gzip" -S
http://localhost/deflate -O/dev/null 2>&1|grep HTTP/1.1
HTTP/1.1 304 Not Modified
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Taco van den Broek <ta...@procurios.nl> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |taco.vandenbroek@procurios.n
| |l
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[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #17 from Eric Covener <co...@gmail.com> ---
It's a copout, but I've made this configurable in r1586542 with a default for
now of maintaining the 2.4 behavior.
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
rahul <ra...@sun.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #22453|0 |1
is obsolete| |
--- Comment #7 from rahul <ra...@sun.com> 2008-08-21 08:13:07 PST ---
Created an attachment (id=22468)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=22468)
use ap_hook_post_read_request instead of input filter
Incorporate suggested changes by Nick
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #9 from Sidharth Kshatriya <si...@gmail.com> 2008-09-18 08:27:57 PST ---
I had a look at ap_hook_post_read_request attachment...seems like I can get
away with just compiling mod_deflate.c
I'm using Apache 2.2.8. Can anyone help me on where I can get the correct
source for the corresponding mod_deflate and how I can compile mod_deflate?
Thanks for your help!
Sidharth
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
rahul <ra...@sun.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |RFC
--- Comment #4 from rahul <ra...@sun.com> 2008-08-19 05:36:44 PST ---
There is a workaround,
If you are serving from a location say /js
You can use a configuration like below to switch ETag: $1-gzip to $1
<Location /js>
RequestHeader edit "If-None-Match" "^(.*)-gzip$" "$1"
Header edit "ETag" "^(.*[^g][^z][^i][^p])$" "$1-gzip"
</Location>
(Perhaps this should be done from mod_deflate as input filter
with the condition that if Client requests with Accept-Encoding: gzip
only then modify If*match headers to their un-gzip values.)
(Also the current value of ETag (+gzip) is not RFC compliant, since RFC
mandates
a quoted string as the value of ETag. As the noted by john, -gzip should be
inside quotes.)
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #12 from Sidharth Kshatriya <si...@gmail.com> 2008-09-18 11:03:49 PST ---
Thanks for your response Rahul.
Unfortunately I am new to all of this. I applied Nick's patch to my
mod_deflate.c but I got patching errors...his patch is assuming a slightly
different mod_deflate.c from mine.
Would really appreciate if you were able to direct me to the place (or even
better just gave me the patched mod_deflate.c version) that I could just
compile.
[ASIDE: I am using apxs2 -c mod_deflate.c
with LDFLAGS="-lz" set in /usr/bin/aprconfig
I notice that my original mod_deflate.so depends on libpthread. When I apply
your patch to my file and compile, I don't get dependency with libpthread.]
Please tell me if I would need to do any additional transformations to the file
you would provide me (assuming you can :-) ).
Thanks a Ton!
Sidharth
[Attaching the mod_deflate that I have. This I obtained by issuing
sudo apt-get install apache2-src
on ubuntu. This is version 2.2.8 Apache]
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[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #19 from Jesús Cea <jc...@jcea.es> ---
Eric, I am graceful for the new directive, but why not implementing a better
ETAG verification instead of altering the ETAG generation?.
If you get an etag with a "-gzip" suffix, you just verify the etag without that
suffix. You could link this to the "accept-encoding" header, maybe.
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #10 from Sidharth Kshatriya <si...@gmail.com> 2008-09-18 09:19:28 PST ---
Hi,
Sorry for flooding this mailing list.
In this thread there is Rahul's mod_deflate patch and there are some patches in
this bug thread:
https://issues.apache.org/bugzilla/show_bug.cgi?id=39727
(mostly by Nick Kew)
Which one is the best solution?
Thanks,
Sidharth
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
dima@ulupov.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dima@ulupov.com
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #15 from hackeron@gmail.com 2009-04-13 11:25:53 PST ---
I'm still experiencing this with 2.2.11-2ubuntu2 -- but adding these 2 lines
are suggested by rahul works:
RequestHeader edit "If-None-Match" "^(.*)-gzip$" "$1"
Header edit "ETag" "^(.*[^g][^z][^i][^p])$" "$1-gzip"
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Franklin Tse <pe...@hotmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Depends on| |39727
Severity|normal |regression
Component|Core |mod_deflate
OS/Version|Linux |All
Platform|PC |All
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #13 from Sidharth Kshatriya <si...@gmail.com> 2008-09-18 11:10:32 PST ---
Created an attachment (id=22605)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=22605)
mod_deflate as found in apache2-src package on ubuntu version 2.2.8-1ubuntu0.3
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED
response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #8 from Sidharth Kshatriya <si...@gmail.com> 2008-09-18 08:23:02 PST ---
Hello!
I'm also facing the same problem -- I had been scratching my head for sometime
before I found this bug report. I have to reduce my page size urgently and not
having gzip on is not really an option for me.
I'm not really comfortable having a customized compiled version of apache2 on
my system and the regular expression "hack" will also slow things down (will
it?).
Any alternative ideas? When might this bug be fixed?
Thanks,
Sidharth
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #6 from John Siracusa <si...@gmail.com> 2008-08-19 07:47:26 PST ---
Both the workaround in comment #4 and the patch in comment #5 appear to work.
Neither are real "fixes" for the bug, however. (But I'm glad I have something
to work with until a real fix arrives, so thanks rahul!)
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[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #20 from Eric Covener <co...@gmail.com> ---
(In reply to Jesús Cea from comment #19)
> Eric, I am graceful for the new directive, but why not implementing a better
> ETAG verification instead of altering the ETAG generation?.
My immediate concern is the unnecessary difference between 2.2 and 2.4,
allowing the 2.2 behavior in 2.4 is a lot simpler to tackle then adding some
third behavior (I admitted before it was a copout)
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[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #17 from Jackie Rosen <ja...@hushmail.com> ---
*** Bug 260998 has been marked as a duplicate of this bug. ***
Seen from the domain http://volichat.com
Page where seen: http://volichat.com/adult-chat-rooms
Marked for reference. Resolved as fixed @bugzilla.
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[Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
--- Comment #21 from Martin Heide <ma...@faroeurope.com> ---
(In reply to Eric Covener from comment #17)
> It's a copout, but I've made this configurable in r1586542 with a default
> for now of maintaining the 2.4 behavior.
Hi Eric,
will your workaround of r1586542 make it into some Apache 2.4 release? I saw
that it
is integrated in 2.5, but it is not mentioned in the 2.4 docs.
I tried the DeflateAlterETag directive, but it does not seem to available in
Ubuntu 14.04 LTS (Apache 2.4.7).
Since you only added a directive, this cannot break any existing server
configurations, so it should be available in 2.4, too!
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Maxime Ritter <ai...@trolleur.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |airmax@trolleur.net
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Nick Kew <ni...@webthing.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|major |normal
Component|mod_deflate |Core
--- Comment #2 from Nick Kew <ni...@webthing.com> 2008-05-17 06:47:55 PST ---
This is actually a fix of Bug 39727. Yes, we know the core code testing for
conditional responses still needs work.
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
Takashi Sato <ta...@lans-tv.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |takashi@lans-tv.com
Severity|normal |major
--- Comment #1 from Takashi Sato <ta...@lans-tv.com> 2008-05-17 00:22:47 PST ---
If we remove "-gzip" from Etag for If-None-Match, a server returns 304.
mod_deflate adds "-gzip" and sends it to us, but condition check of
If-None-Match runs before mod_deflate ...???
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DO NOT REPLY [Bug 45023] DEFLATE preventing 304 NOT MODIFIED response
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https://issues.apache.org/bugzilla/show_bug.cgi?id=45023
John Siracusa <si...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |siracusa@gmail.com
--- Comment #3 from John Siracusa <si...@gmail.com> 2008-06-24 07:32:39 PST ---
This bug nearly defeats the purpose of mod_deflate. I turned mod_deflate on
with the intent of saving bandwidth when sending JavaScript and CSS files.
Instead, I'm using *more* bandwidth for every request but the first.
(Previously, subsequent requests would result in small, no-content 304
responses. Now the compressed JS and CSS files are sent every time.)
BTW, the change that appends "-gzip" to the etag (revision 607219, I think) is
a bit wacky in its own right in that it appends outside the double quotes.
IOW, if the original header is:
Etag: "5954c6-10f4-449d11713aac0"
the modified header ends up as:
Etag: "5954c6-10f4-449d11713aac0"-gzip
when it probably should be:
Etag: "5954c6-10f4-449d11713aac0-gzip"
with the "-gzip" inside the quotes. I altered the code to do this, but it had
no affect on this 304 bug. I just wanted to note it here so the situation is
avoided when this bug is fixed for real.
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