IE11 Object doesn't support property or method 'assign'

[lailo]

Hi y'all

I'm using Next.js V3.0.3 and I'm having problem on IE11 with the following error;

Object doesn't support property or method 'assign'
TypError: Object doesn't support property or method 'assign' 

Steps to Reproduce (for bugs)

1. Create a next.js app
2. use {...oneObject, ...secondObject} in your code
3. build
4. run

Context

It's working on Chrome desktop/mobile and it's working on Safari desktop/mobile. It's working on Microsoft Edge but not IE11.

Your Environment

Tech	Version
next	3.0.3
node	8.1.0
npm	5.0.3
OS	macOS 0.12.6
browser	Internet Explorer 11

Is there any solution to this problem or a hotfix?

Thanks for your help.

[renancouto]

You can use a polyfill for that

[timneutkens]

Duplicate of #2468