[Gllug] Internet Exploiter caching bug

[Richard Jones]

Does anyone know what voodoo I have to do to stop IE re-requesting
images which are (should) already be in its cache?  I have some
buttons on a webpage which use CSS to set the background-image on
hover.  I'm sending Expires headers on the image, with a suitably long
expiry time.  Not surprisingly, while every other browser does the
Right Thing, Internet Exploder tries to refetch the image each time
(although I can't reproduce this from my local Windozey machine).

Ideas?

Rich.

81.152.218.8 - - [05/Apr/2004:19:45:07 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:07 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:07 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:08 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:08 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:08 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:08 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:08 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:09 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:09 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802
81.152.218.8 - - [05/Apr/2004:19:45:10 +0100] "GET /graphics/stars.gif HTTP/1.1" 200 5608 "http://j-london.com/topic/" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.1.4322)" 81.152.218.8.208701081190555802

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Richard Jones. http://www.annexia.org/ http://www.j-london.com/
Merjis Ltd. http://www.merjis.com/ - improving website return on investment
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