Nginx 0.8.53/0.7.67 unable to return 304

Server NGINX
1

Hi all,

need help with nginx configuration, I had configured a very simple
static file caching or direct from disk, but nginx did not return 304
when if-modified-since header is in the request.

if-modified-since exact;

    location / {

        root   /www;
        index  index.php index.html index.htm;
        expires 1d;

    }

thanks

rchen

Posted at Nginx Forum:

2

here is the request and response header

User-Agent Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.12)
Gecko/20101026 Firefox/3.6.12
Accept image/png,image/;q=0.8,/;q=0.5
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 115
Connection keep-alive
If-Modified-Since Fri, 10 Sep 2010 00:10:07 GMT
Cache-Control max-age=0

Server nginx
Date Tue, 09 Nov 2010 22:26:50 GMT
Content-Type image/gif
Content-Length 5541
Last-Modified Fri, 10 Sep 2010 00:10:07 GMT
Connection keep-alive
Expires Wed, 10 Nov 2010 22:26:50 GMT
Cache-Control max-age=86400
Accept-Ranges bytes

Posted at Nginx Forum:

3

Hi Maxim,

we have installed with default modules, and test with firefox 3.6.12 to
retrieve a gif file, not matter how we change the configuration, we
still get 200 in return.

Regards

Posted at Nginx Forum:

4

Hello!

On Tue, Nov 09, 2010 at 05:22:04PM -0500, rchen9012 wrote:

need help with nginx configuration, I had configured a very simple
static file caching or direct from disk, but nginx did not return 304
when if-modified-since header is in the request.

if-modified-since exact;

Just a side note: there is no such directive; there is
if_modified_since one.

    location / {

        root   /www;
        index  index.php index.html index.htm;
        expires 1d;

    }

The basic question is: how did you test?

Hint: never trust browsers and various “http headers” plugins, in
many cache-related cases they show incorrect info. Looking what
happens on the wire (tcpdump, wireshark) or at least intercepting
traffic with debugging proxy (fiddler) is recommended.

Maxim D.

5

On Wed, Nov 10, 2010 at 09:40:11AM -0500, rchen9012 wrote:

Hi Maxim,

we have installed with default modules, and test with firefox 3.6.12 to
retrieve a gif file, not matter how we change the configuration, we
still get 200 in return.

Could you create debug log of the request ?
http://nginx.org/en/docs/debugging_log.html

–
Igor S.
http://sysoev.ru/en/