출처 : https://stackoverflow.com/questions/61499761/symbol-undefined-error-for-dropzone-in-ie11
Symbol undefined error for dropzone in IE11
The latest dropzone.js version does not seem to work in IE11. How to test? 1) Open up https://www.dropzonejs.com/examples/simple.html in IE11 2) dropzone not clickable and files cannot be dragge...
stackoverflow.com
dropzone이 버그로 인해 ie11에서 symbol is undefined로 사용이 불가능하다.
아래 dropzone.js 파일을 다운받아 교체한다.