polyfills - Angular 4 app not working on IE11 and edge

Question

I am working on angular 4 app and its working fine on all browsers except IE11 and edge, I check for solutions and added es15 support and added polyfills to support IE but its still not working properly.

Issue : Not loading at first time on IE and loads after couple of refreshes but not fully.

I already have done the polyfill fixes as mentioned here

Any help is appreciable

Thanks

Answer 1

After trying different methods and modules I ended up with following solution to make angular 4 app compatible on all browsers.

* BROWSER POLYFILLS
*/

/** 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';
import 'core-js/es6/reflect';
import 'core-js/client/shim';

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

/** IE10 and IE11 requires the following to support `@angular/animation`. */
import 'web-animations-js';  // Run `npm install --save web-animations-js`.

/** ALL Firefox browsers require the following to support `@angular/animation`. **/
import 'web-animations-js';  // Run `npm install --save web-animations-js`.

/***************************************************************************************************
* Zone JS is required by Angular itself.
*/
import 'zone.js/dist/zone';  // Included with Angular CLI.

/***************************************************************************************************
* APPLICATION IMPORTS
*/

/* polyfill ie11 */
import 'core-js/es7/array';
import 'core-js/es7/reflect';

/**
 * Date, currency, decimal and percent pipes.
 * Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
 */
// Run `npm install --save intl`.
import 'intl'; 
import 'intl/locale-data/complete.js';
import 'intl/locale-data/jsonp/en.js';

if (typeof SVGElement.prototype.contains == 'undefined') {
    SVGElement.prototype.contains = HTMLDivElement.prototype.contains;
}

You might need some other polyfills depending upon modules you have installed on your project like few charts and graphs needs some extra configurations sometime.