Use of Mutation Events is deprecated. Use MutationObserver instead.  jquery.min.33cabfa15c1060aaa3d207c653afb1ee.js:3:6084
"Download the React DevTools for a better development experience: https://fb.me/react-devtools"  uploader-bundle.5165c7e145806dfdd53114531c68c5a8.js:3:22865
Empty string passed to getElementById(). upload