Having to upload a JPEG image as a raw Blob on Android 4.0+ revealed a couple of bugs. If you have direct access to the specific JPEG image, when the image is on the same domain as the rest of your app, or you are in an environment without cross-origin restrictions, such as a PhoneGap webview, you can use the XHR2 responseType property to specify the format of the returned data. XMLHttpRequest 2 s