PDF's turn upside down if you click onto another tab once they are open and go back to them
Summary
After clicking onto a PDF viewing it, going to another tab and back again the PDF is presented upside down.
Steps to reproduce
View a PDF (EG: https://gitlab.com/gitlab-com/www-gitlab-com/blob/master/source/images/press/git-cheat-sheet.pdf)
Click onto another tab
Go back to the PDF Tab
What is the current bug behaviour?
What is the expected correct behaviour?
Output of checks
Gitlab.com
Edited by Eddie Stubbington