New answers tagged url-rewriting
Those changes should apply instantly. Maybe what's happening to you is an effect of the client-side cache of the browser. If you had already downloaded the images before establishing the new rule, they are cached by default and the rule doesn't seem to work, but it's working. Try to reload the image with CTRL+R instead of simply revisiting their URL, and ...
These changes should take effect immediately. Try restarting the website from the IIS Manager.
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