Let's say you have an image that is actively updated but keeps the same filename. How do you force browsers and proxy caches to refresh at the browser end? I "touch" the file so that it's last modifed date is now and often it has a different size and hence etag. Apache correctly honours this and returns 200 OK or 304 no modified it asked. but it seems that a lot of browsers and caches don't ask.

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[ 11-May-05 11:12am ] [ , ]