IE 11 - fetch undefined

I had to include the source code in my project and modified OidcConfigService to fix this problem. I also had to import { Buffer } from ‘buffer’; into TokenHelperService as well as add (window as any).global = window; to polyfills.ts . Now I am getting a separate, likely un-related to this library, error. Same as this person.. How fun it is to work with IE. My project is based off of this one

import { HttpClient } from '@angular/common/http';
import { EventEmitter, Injectable, Output } from '@angular/core';

@Injectable()
export class OidcConfigService {

    constructor(private http: HttpClient) { }

    @Output()
    onConfigurationLoaded = new EventEmitter<boolean>();
    clientConfiguration: any;
    wellKnownEndpoints: any;

    load(configUrl: string) {
        try {

            this.http.get(configUrl).subscribe((clientConfig: any) => {
                this.clientConfiguration = clientConfig;
                this.http.get(`${clientConfig.stsServer}/.well-known/openid-configuration`).subscribe((data) => {
                    this.wellKnownEndpoints = data;
                    this.onConfigurationLoaded.emit(true);
                });
            });

        } catch (err) {
            console.error(
                `OidcConfigService 'load' threw an error on calling ${configUrl}`,
                err
            );
            this.onConfigurationLoaded.emit(false);
        }
    }
}

[JohnGalt1717]

You’ll need a fetch polyfill likely. Per the documentation:

IE 11, Edge fetch For the fetch to work, or the app init, you need to include the isomorphic-fetch package. https://www.npmjs.com/package/isomorphic-fetch And add this to the polyfills /** Workaround for IE11 and polyfill problem */ import ‘isomorphic-fetch’;

[FabianGosebrink]

Should be fixed with https://github.com/damienbod/angular-auth-oidc-client/commit/a24bc53a5993d82e3adc4d8937d45448d92424ba