### Description We are doing XMLHttpRequest PUT request (sending base64 encoded image data, setting content type header, etc). iOS sends progress updates, Android does not. We tried setting progress listener the following ways: xhr.addEventListener('progress') xhr.upload.addEventListener('progress') xhr.upload.onprogress = () => {} xhr.onprogress = () => {} None of these handlers end up being called on Android, however on iOS they work fine. The request completes successfully with a 200. ### Reproduction ### Solution ### Additional Information * React Native version: 0.39.2 * Platform: both Android and iOS tested (issue only on Android) * Operating System: MacOS