Angular2 IE11 Unable to get property 'apply' of undefined or null reference

Question

I am getting the following error after upgrading my angular2 packages to the following versions:

• @angular/common\": \"^2.3.1
• @angular/compiler\": \"^

Answer 1

Angular has dependency on core-js. Thereby you can use Object.assign polyfills from it:

import "core-js/client/shim"; // or load it before other angular2 & zone.js stuff
import "zone.js";
import "reflect-metadata";