🚀 go-pugleaf

I posted the following to comp.lang.java.programmer but didn't get a
response, so I thought I'd give it a try here.


I have an applet which downloads images from the web.  However, I only
want to download the image if it has changed.  I am using:

.
.
.

URLConnection con = Url.openConnection();
con.setUseCaches(false);
lCurrentModified = con.getLastModified();
etc.
.
.

I notice that in Netscape this causes about 300 bytes to be
transferred, which is about what I would expect.  (The image size is
appx 35k).

However, in both Internet Explorer (V 4) and using Opera with the Java
1.1.6 plugin between 17k and 18k is transferred.  That seems to be
what the compressed image size might be.

Can it be that both these browsers are downloading the entire image
when I am just requesting the time stamp?  This is beating my
bandwidth to death.

Anyone have any ideas?????

Rich

----------------------------------------------------------------------
Richard V. Downing               Home: http://rvd.home.mindspring.com
Senior Software Engineer                    Work: http://www.vsin.com   
VideoConferencing Systems, Inc.             Email: rvd@mindspring.com
Norcross, Ga
------------ When surrounded by wolves 'tis best to howl -------------