Change Images during <staticcontent> option enable for caching

[Dusfoussyhigo]

I have enable \[code\]<staticContent>\[/code\] for my web site(in development server), and for testing I have set expiration time is 2 minute. I am trying to change image, to check what happen after expiration. but still I am getting old image or some time css or js not loading properly and getting 500 internal error.\[code\]<staticContent> <clientCache cacheControlMaxAge ="0.00:02:00" cacheControlMode="UseExpires" /> </staticContent>\[/code\]