How to show PDF in another tab of IE11

[Yoshi034]

Hello
I am developing an application with Angular7.
I want to view PDF in another tab in IE11 using your library, but it doesn't work.
(I worked fine with Chrome and FireFox.)
The settings are as follows, but are you aware of the cause?

html

<button (click)="openPdf()">Open Pdf</button>

<div style="width: 800px; height: 400px">
  <ng2-pdfjs-viewer
    #pdfViewer
    [externalWindow]="true"
    [downloadFileName]="'mytestfile.pdf'"
    [openFile]="false"
    [viewBookmark]="false"
    [download]="false"
  ></ng2-pdfjs-viewer>
</div>

component

export class MyComponent implements OnInit {
  @ViewChild("pdfViewer") pdfViewer
  ...
 
openPdf(): void {
    this.service.getFile().subscribe(response => {
      this.pdfViewer.pdfSrc = response.body;
      this.pdfViewer.refresh();
    });
  }

I also checked polyfills.ts and it was as follows.

/** 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';

/**
 * If the application will be indexed by Google Search, the following is required.
 * Googlebot uses a renderer based on Chrome 41.
 * https://developers.google.com/search/docs/guides/rendering
 **/
import 'core-js/es6/array';

/** 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 for the Reflect API. */
/**
 * DO NOT REMOVE
 * By default, Reflect polyfills are auto-included by the CLI and
 * are required for JIT compilation.  StackBlitz examples are
 * compiled using JIT.
 */
import 'core-js/es6/reflect';
import 'core-js/es7/reflect';

/**
 * 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).
 */
import 'web-animations-js';  // Run `npm install --save web-animations-js`.

/**
 * 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.ts';
 *
 * 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_symbol__BLACK_LISTED_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;
 *
 */

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

[codehippie1]

@masashiyoshiwara Did you check the polyfills solution provided on issue #13

[codehippie1]

Closing due to inactivity. Refer to the previous comment for a fix