nginx 0.8.53/0.7.67 unable to return 304

[Maxim Dounin]

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 Dounin