I have a page designed to move a JPG image around inside a smaller window. This page works fine in FireFox and IE6 when accessed via local hard disk or via IIS.
I have a small webserver (coded in C) built to host files out. When I use this webserver to host the files, FireFox works perfectly. IE6 displays "Downloading picture..." every time I move the JPG image around.
I have verified with a packet analyzer that IE6 is not communicating with the server when it displays this, but it prevents the JPG image from moving for 2 seconds.
I believe that the only difference between IIS and my webserver is the HTTP headers that are sent. Do you know what HTTP headers could cause this to occur?
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