odd caching behavior in IE
- From: stopenlargo@xxxxxxxxx
- Date: 20 Jul 2006 15:37:40 -0700
Hi there,
I've been working on reducing bandwidth hits on a web server, and have
found some strange IE behavior that I can't find an explanaiton for.
Basically, I've noticed IE seems to have three different caching
behaviors:
(1) When a page loads for the first time, everything must be downloaded
(no suprise here).
(2) When a page has already been cached, IE grabs the majority of the
page data from the cache (again, no surprise).
(3) If a previously cached page is accessed in a newly opened browser
window, IE pulls some, but not all, of the page data down from the web
server again instead of using what is already in cache. Even stranger,
if the newly opened browser window is left alone for a few minutes
instead of immediately being redirected to the web page, the browser
will then properly use the cached data.
In real world terms using a test page, IE would download about 300K
when there was nothing cached yet, about 18K when the page was already
cached, about 70K when trying to load a previously cached page in a new
browser window, and 18K again if the new browser window was left alone
for a few minutes before attempting to access the test page.
I was thinking that it could have been a session cookie issue, but the
website I was using did not place any cookies on the local client.
Does anyone have any ideas as to what may be causing this?
Thanks!
-adr
.
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