In-page PDF viewer rendering pages out of order

Summary

In-page PDF viewer rendering pages out of order

Steps to reproduce

Upload a PDF with at least 10 pages to a repository and try to view it in the browser

Seems to effect EE and Gitlab.com, haven't tested CE.

Tested in chromium and Firefox (both latest), same result in each.

Example Project

https://gitlab.com/xorcat/pdf-test/

https://gitlab.com/xorcat/pdf-test/blob/master/blah.pdf

What is the current bug behavior?

Pages are not rendered in sequential order

What is the expected correct behavior?

Pages are rendered in sequential order

Relevant logs and/or screenshots

N/A

Output of checks

This bug happens on GitLab.com

Possible fixes

Sorry, I have no idea :(