Angular4 Application running issues in IE11

Question

I am building a Angular4 project using Angular CLI (1.1.2). It runs perfectly in Chrome (Version 59.0.3071.115) and firefox(54.0.1) but when I tried to use IE11 (Verison 11.

Answer 1

I got this when I tried to add an es7 import. I simply replaced the es6 import with the es7 import. Turns out I needed both.

Gives me "Exception thrown and not caught" error:

import 'core-js/es7/array';

Works fine:

import 'core-js/es6/array';
import 'core-js/es7/array';