RE: Can someone PLEASE help me out??

> From: Stuart Henderson [SMTP:sthen@naiad.eclipse.net.uk]
>
> This behaviour is exactly as expected. The times where Squid is
> contacting the origin server are for requests where the client sent
> an if-modified-since get (i.e. the object was in the client cache,
> the client asked for verification).
>
        There are no examples of squid contacting the
        origin server in the log fragment from squid.

> You should arrange for your web server to present Expires headers
> on static documents.
>
        I think the real answer is that he shouldn't
        press reload in the browser, as what I think
        is really happening is that the browser is
        requesting an end to end revalidate.

        There are roughly three levels of refreshing
        a page:

        - revalidate against the shared cache;

        - revalidate against the origin server; and

        - reload from the origin server.

        I think a cache aware IE does the first for the
        first access in a session, the second for refresh
        and the third for control refresh, but could be
        wrong.
Received on Mon Feb 14 2000 - 13:08:48 MST