I’m stumped; so this is a shout out to the lazy web.
For the some of the sites that I publish I load shift the bandwidth for serving images to another machine. I do this by having those site do a temporary redirect to images.redzephyr.net which serves the image from a cache. If it is not in it’s cache it pulls the image from the original server.
This scheme was working fine until image server was upgraded and moved it to a new IP address.
Since that change my the cache directory on the image server seems to slowly fill with images from which the first N bytes have been dropped. If I clear the cache the problem goes away for a while; but reemerges slowly but surely.
Meanwhile this is polluting the browser side caches of my users and I need a scheme to clear their caches. I have a lame scheme to do that (changing all the redirected URLs).
If anybody recognize what stupid thing I’ve overlooked?
ps. How to “Bypass your browser’s cache“.