Is your WebView Section based on an rsp script? If so, open the Web App View, click Deploy, then click Preview (or open your browser and go to http://localhost:8001 and open the App from there). You should see your image correctly. (If not, check the inspector in the browser and see if there are any errors.) The Web App View is looking for the image in the temporary directory where the code it generated instead of the App's directory.