title: Amazon Cloudfront cache issue
body: <p>Hey I have started using Cloudfront. In my application I have images in s3 bucket.
  User can update these images .When user update the image ,image get created in the s3bucket and replaces the older image with the new image .After the image get still the older image get dispalyed to user as for GET operations I am using Cloudfront so the older image is retrieved from the cloudfront cache.</p>
  
  <p>So is there any technique to resolve this ...</p>