proxy with header If-Modified-Since

[Maxim Dounin]

Hello!

On Tue, Sep 06, 2011 at 10:39:56PM +0800, chinix wrote:

> hi all,
> 
> I find that when the cache is expired,nginx request completely 
> to backend for fresh cache even the file wasn't modified.Could 
> nginx request to backend with header "If-Modified-Since" when 
> the cache is expired? If this,backend will response with code 
> 304, nginx should deal with the 304 response.

This is not currently supported.

Maxim Dounin