the new upload picture file does not display until i refresh the page. I believe this is a caching problem. So i added the following statements to prevent browser caching. But it didn't work. Is this a caching problem or something else? If this is a caching problem, how can i solve it?
response.setHeader( "Cache-Control", "no-cache" );
response.setHeader( "Pragma", "no-cache" );
response.setIntHeader( "Expires", 0 );