Image not Displayed in Chrome return 304 error,

hI Frnds,
 
        Image not load in Google Chrome return 304 error, but it working in other browsers.
 
        Actual seniro load the all image in datalist as thumb image when i click the thumb in datalist image it display in big image, 

        Other browser it work file but not in  google chrome. how to solve pls guide me.
        
Thanks in advance.