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Discussion on: Angular: How to support IE11

katik1408 profile image
Kartik Saxena

Here is my pollyfills.js

  • Load $localize onto the global scope - used if i18n tags appear in Angular templates. / import '@angular/localize/init'; /*
  • This file includes polyfills needed by Angular and is loaded before the app.
  • You can add your own extra polyfills to this file. *
  • This file is divided into 2 sections:
  • 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
  • 2. Application imports. Files imported after ZoneJS that should be loaded before your main
  • file. *
  • The current setup is for so-called "evergreen" browsers; the last versions of browsers that
  • automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
  • Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile. *
  • Learn more in */



/** 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';

/** Issue with IE and FormData **/
import 'formdata-polyfill';

/** IE10 and IE11 requires the following for NgClass support on SVG elements /
import 'classlist.js'; //Run npm install --save classlist.js.

  • Web Animations @angular/platform-browser/animations
  • Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.
  • Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0). / /* IE10 and IE11 requires the following for the Reflect API. */ import 'core-js/es6/reflect'; import 'core-js/es7/reflect'; import 'core-js/es7/array'; import 'core-js/es7/object';

import 'web-animations-js'; // Run npm install --save web-animations-js.
import 'core-js/client/shim';

  • By default, zone.js will patch all possible macroTask and DomEvents
  • user can disable parts of macroTask/DomEvents patch by setting following flags
  • because those flags need to be set before zone.js being loaded, and webpack
  • will put import in the top of bundle, so user need to create a separate file
  • in this directory (for example: zone-flags.ts), and put the following flags
  • into that file, and then add the following code before importing zone.js.
  • import './zone-flags'; *
  • The flags allowed in zone-flags.ts are listed here. *
  • The following flags will work for all browsers. *
  • (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
  • (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
  • (window as any).zone_symbolUNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames *
  • in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
  • with the following flag, it will bypass zone.js patch for IE/Edge *
  • (window as any).Zone_enable_cross_context_check = true; * */ (window as any).Zone_enable_cross_context_check = true; /***************************************************************************************************
  • Zone JS is required by default for Angular itself. */ import 'zone.js/dist/zone'; // Included with Angular CLI.



Also I have attached the IE11 Error page.

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katik1408 profile image
Kartik Saxena


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coly010 profile image
Colum Ferry Author

Doesn't look like images attached. Can you message me on Twitter @FerryColum ?