If we have two different apps, app1 & app2, and want to copy a local image (ex. its location is "app://app1/test.jpg") from app1 to app2, we cannot access this image on app2 because app2 doesn't have access authority to this local image from app1. According to the flavor list (Note: The list is the same between Firefox OS and Firefox browser), we always copy HTML <img> tag first, instead of the image binary data, onto the content editable area. Therefore, we can not display the image correctly on app2 due to the security issue.