Good points, I hadn't thought about the app being completely client-side and the restrictions that entails. Still, in ye olde times, it was pretty common to ac

Good points, I hadn't thought about the app being completely client-side and the restrictions that entails. Still, in ye olde times, it was pretty common to accept image URLs. You might be able to do some fairly simple rate limiting on the proxy to help prevent abuse. Maybe the net was just a more innocent place back then. Anyhow, if it only works with images dragged from the user's local computer, it should really say so. It's especially confusing on Chrome, where UI cues like the mouse cursor changing suggest that dnd between windows should actually work. It generates a drop event and everything, although it appears that the DataTransfer item just contains the image URL and not its actual contents.