Sent by Robert Tweed on 12 May 2005 17:05
Phillip Smith wrote:
> background-image: url(../med/rotate_home/rotate.php); ...
[snip]
> Anyway, the techniques works fine for Safari and Firefox on the Mac, but
> appears to simple cache the first image for most PC browsers.
No idea if this will work, but it's a trick from other environments to
defeat the local cache. Try:
> background-image: url(../med/rotate_home/rotate.php?); ...
The question mark at the end tells the browsers that the file is a CGI
script. I don't know whether adding a dummy parameter will work or not,
but the best cache-defeating technique requires a random parameter, and
that's not possible here because you can't insert a script in your CSS.
Of course, Josh's suggestion of dynamically writing the CSS might be a
better approach. Apart from anything else, it will allow the images to
be cached, reducing your server load. That's the way I've done the same
thing in the past.
- Robert
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