Re: [cobalt-users] Mysterious old site won't go away

["Steve Werby" <steve-lists@xxxxxxxxxxxx>]

"Edward Bishop" <eddie@xxxxxxxxxxxxxxxx> wrote:
> Thank you very much for these good ideas Steve.
>
> Before my original post I had nearly worn out the refresh button, and
tried
> ctrl-alt-shift-refresh and shift-refresh and right-click-refresh on every
> frame - then I cleared the browser cache - still with no difference.
>
> But then after your advice I tried connecting to another ISP and the
problem
> was gone. Then I connected to my usual (cable) ISP and it was back! So I
can
> only think they are using some kind of very-slow-refreshing proxy
server...?
>
> I've noticed in the past when changing DNS details for domains others can
> see the effects hours earlier than me.

Edward, glad my idea about the possibility of browser caching got you
thinking about caching at your ISP.  FYI, there are some headers you can
easily set using PHP if you want to try to control caching.

<?php
header( "Pragma: no-cache" );
header( "Expires: Mon, 26 Jul 1997 05:00:00 GMT" );
header( "Last-Modified: " . gmdate( "D, d M Y H:i:s" ) . " GMT" );
header( "Cache-Control: no-cache, must-revalidate" );
?>

This is probably way OT for this list so if you need more info. I suggest
checking a source on HTTP or the PHP mailing list archive.

--
Steve Werby
President, Befriend Internet Services LLC
http://www.befriend.com/