How to solve ExcelJS 'Object doesn't support property or method assign' exception in IE 11

Question

I use the component ExcelJS in my React application. The component works perfectly in all the major browsers (Chrome, Firefox, Edge), however in Internet Explorer it throws an exception related to the Javascript method assign():

Object doesn't support property or method 'assign'

I know that the issue is not strictly related to the ExcelJS component but maybe somebody has any solution for this?

there is no work around for this, except you want to do poly-filling — 0.sh, Oct 05 '18 at 14:35
@0.sh I am open to everything, since this issue is a showstopper for my project — CiccioMiami, Oct 05 '18 at 14:37
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign#Polyfill — 0.sh, Oct 05 '18 at 14:43
@0.sh thanks for the suggestion but how fan I apply a polyfill to an external package? — CiccioMiami, Oct 06 '18 at 00:00

score 1 · Answer 1 · answered Oct 25 '19 at 17:56

1

You may consider to add at the top of your entry point (file)

import 'core-js'

At the moment core-js polyfill library is the easiest way to make Cross Browser Support

answered Oct 25 '19 at 17:56

Roman

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How to solve ExcelJS 'Object doesn't support property or method assign' exception in IE 11

1 Answers1