Failing to load pdf.worker.js does not throw an error in pdfjs.getDocument

[wojtekmaj]

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Configuration:

• PDF.js version: 2.0.550

Steps to reproduce the problem:

1. Configure PDF.js badly so that pdf.worker.js is a 404 page
2. Run pdfjs.getDocument

What is the expected behavior?

1. getDocument Promise gets rejected

What went wrong?

1. Since creating worker failed, setupFakeWorker is called.
2. Inside it, setupFakeWorkerGlobal() never resolves, nor never throws an error, if something bad happens with fakeWorker. So adding .catch() to setupFakeWorkerGlobal() or even wrapping it with try {} catch {} does not make any difference.
3. getDocument Promise is never resolved, does not throw an error.