Angular 9 for Internet Explorer 11 dont work vendor.js compile error

Bug Report or Feature Request (mark with an x)

- [ ] Regression (a behavior that used to work and stopped working in a new release)
- [x ] Bug report -> please search issues before submitting
- [ ] Feature request
- [ ] Documentation issue or request

I use “ng2-pdf-viewer”: “^6.3.0” and upgraded my project to “@angular/core”: “^9.1.9”, In Chrome i have no Problems but when I try to compile the project in es5 and start IE11 locally I get a error from the vendor.js

SCRIPT1010: Indentifier expected
vendor.js (158998,9)

{
  const { <--- Breaks here
    isNodeJS
  } = __w_pdfjs_require__(7);

  if (isNodeJS) {
    const PDFNodeStream = __w_pdfjs_require__(19).PDFNodeStream;

    pdfjsDisplayAPI.setPDFNetworkStreamFactory(params => {
      return new PDFNodeStream(params);
    });
  } else {
    const PDFNetworkStream = __w_pdfjs_require__(22).PDFNetworkStream;

    let PDFFetchStream;

    if (pdfjsDisplayDisplayUtils.isFetchSupported()) {
      PDFFetchStream = __w_pdfjs_require__(23).PDFFetchStream;
    }

    pdfjsDisplayAPI.setPDFNetworkStreamFactory(params => {
      if (PDFFetchStream && pdfjsDisplayDisplayUtils.isValidFetchUrl(params.url)) {
        return new PDFFetchStream(params);
      }

      return new PDFNetworkStream(params);
    });
  }
}

Has anybody an idea what the problem is?

[chintan3100]

Add below package

Set worker js in App component (<any>window).pdfWorkerSrc = ‘./scripts/pdf.worker.js’; Do not use above code to load worker. It will create performance issue to navigate pdf pages. User below (window as any).pdfWorkerSrc = import(‘pdfjs-dist/webpack’);

[m0py]

Add below package

Set worker js in App component (window).pdfWorkerSrc = ‘./scripts/pdf.worker.js’;

It works for me without any problems! Thanks!!!