No scrollbars on macOS

[IsaacSchemm]

IsaacSchemm/MultiCD#71

Hi IsaacSchemm,

I found an issue / bug in your PDF.js reader fork for SeaMonkey:

* https://github.com/IsaacSchemm/pdf.js-seamonkey

It doesn't show scrollbars when using it in Pale Moon 28, on macOS. The scrollingitsself is flawless, though. Without the scrollbar, however, you have little idea where you are in the document. I know that the add-on is meant specifically for SeaMonkey, but since Pale Moon is derived from Gecko 52 too, it could likely still be fixed (hopefully).

Pale Moon 28.3.0 (got it from here: https://forum.palemoon.org/viewtopic.php?f=41&t=21295 ), macOS 10.14 Mojave, PDF Viewer 2.0.961 if that matters.

I also know that it is off-topic to post this issue here, but your PDF.js fork repo has no issue section, and there is know other way to reach you on GitHub other than to post the issue in some other repo of yours.

Have a nice day.

Peacock365