You cannot prevent a file from being cached in the browser; what most "cache"
settings are designed to do is prevent session information and cookies from
being cached. The best you can do is force the browser to grab the file from the
server each and every time it is viewed, which acheives the desired effect.
To do that, all you need is to add the following js to your html file:
..."Main.swf?nocache="+(new Date()).getTime()
I wrote a tutorial on adding this to the flex html template:
http://www.communitymx.com/abstract.cfm?cid=32F44
This appends a unique number on the end of the file name, tricking the browser
into thinking it's getting a new file every time, thus downloading the SWF from
the server every time. You can use an equivalent of this technique in
ActionScript for loading modules you don't want "cached" as well.
I would not recommend this technique for production, as it will spike your
server load something terrible, but for testing it's essential.
_______________________________________________________________________
Joseph Balderson, Flex & Flash Platform Developer :: http://joeflash.ca
Author, Professional Flex 3 :: http://tinyurl.com/proflex3book
Don Schnell - TFE wrote:
Thanks William, I am not sure why there was no text in my original post
but my issue is how to prevent data from being cached in IE & Firefox.
My SWFs load in data from a flat text file and I tried using the
following No-Cache settings before the head but they don't seem to
prevent this issue.
// prevent browser 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-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
William Chadwick wrote:
Not sure what you want, as there is no text in your message.
But if you want to know about how SharedObject's work, here you go.
Local SharedObjects (AKA 'Flash Cookies') are stored in the following
path in a directory with a random name:
C:\Documents and Settings\USERNAME\Application Data\Macromedia\Flash
Player\#SharedObjects
There are some really clear articles on them on Adobe's devnet.
William Chadwick
On Thu, Sep 24, 2009 at 5:06 PM, Don Schnell - TFE
<[email protected]
<mailto:[email protected]>> wrote:
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