Angular 2 / 4 / 5 not working in IE11

Question

I am trying to figure out why my angular 2 app is stuck on showing Loading... when running in IE 11.

Following someone\'s suggestion, I\'ve tried this plunker, poste

Answer 1

1. Un-comment some imports in the polyfill.ts file.

/** IE9, IE10 and IE11 requires all of the following polyfills. **/
import 'core-js/es6/symbol';
import 'core-js/es6/object';
import 'core-js/es6/function';
import 'core-js/es6/parse-int';
import 'core-js/es6/parse-float';
import 'core-js/es6/number';
import 'core-js/es6/math';
import 'core-js/es6/string';
import 'core-js/es6/date';
import 'core-js/es6/array';
import 'core-js/es6/regexp';
import 'core-js/es6/map';
import 'core-js/es6/weak-map';
import 'core-js/es6/set';

Install npm Pacakages Notice there are some npm install commands in the comments. If you are using an early version of Angular CLI, there may also be a third one. For Angular CLI versions 7, 6, and 1.7 you need to run:

npm install --save classlist.js

npm install --save web-animations-js

now open IE and render your application and check :)