3D FlipBook - Edge fails to download PDF file in chunks, likely due to IF-Bytes header

We have an issue with Edge, where it fails to load.

What seems to happen is that Edge includes an If-Bytes header in the requests, which causes the server to eventually send the full file, and then pdf.worker fails on that. I've noticed that the included pfdjs version seems quite old (version seems to be stripped, but copyright message is from 2020.

It may be possible this is fixed in a more recent version, would it be possible to release an update with an updated pdfjs library, or should it be safe if we update to the most recent version ourself? Alternatively, is there a way to disable range requests through configuration?