Newbie Question -- Bypass client image caching?

[Eric.NET]

I'm using cfx_getImage to extract images from SQL Server...works great. The
image is used on a person's contact info screen within a standard directory
lookup application.

However, since the filename of the JPG is always the same (and therefore, the
SRC attribute of the IMG tag is the same), you get the same person's picture
for any contact info. The picture is only updated when you refresh (F5) the
page.

Does anyone know how to force the browser to always download the image instead
of using its cached copy? Here is what I have already tried:

1. Tried to manually flush the cache...(does this happen only at the server
then?)...
<cfcache action="flush" expireurl="#PhotoDirectoryURL##PhotoFileName#">

2. Tried the CFHEADER tag to expire the page:
<cfheader name="Expires" value="#Now()#">
<cfheader name="Pragma" value="no-cache">

Any help is greatly appreciated!

Thanks,

Eric

[byron1021]

cfcache is a CF server-side function, you can put the HTML for a cf template
into a temp cache dir on the CF server and that html is used instead of
processing the CF template each time. So you probably want to stay away from
that. Try using meta tags instead <meta http-equiv='pragma' content='no-cache'
/> <meta http-equiv='Cache-Control' content='no-cache' /> This are pretty much
the same as the response headers, but may make a difference. Is there any way
in your code to write the image from the server to a unique file name for each
image? Such as appending it with a userid or record id?

[Eric.NET]

Thank you for your reply.

I tried using the meta tags, but they didn't work. Are those just to keep the
actual HTML from caching, not necessarily the images?

I was hoping to avoid using a unique file name for each image to reduce
clutter, as there is the potential for several hundred images. However, my
customer just e-mailed me that this issue was becoming a problem, so...I went
ahead and created the unique file names, and everything works fine.

Thanks again, Byron,

Eric