What version are you running? 1.5.3 What's the URL of the page containing the problem? https://myreviewboard.../r/211095/# What steps will reproduce the problem? 1. Create a new review with the Chrome or Safari web browser 2. Drag a JPG file from the desktop and drop on the drop target 3. Spinner appears as if file is being uploaded What is the expected output? What do you see instead? The file upload should complete and I should see a thumbnail of the image. Instead the spinner goes on forever. What operating system are you using? What browser? Mac OSX 10.6.6 Chrome 10.0.648.82 beta Safari 5.0.3 (6533.19.4) Please provide any additional information below. Firefox works fine.