I open a long (222 pages) PDF document in Gnome 3 for Linux. I click middle mouse button somewhere in the scrollbar and see white sheet of paper instead of the text. Workaround: Scroll a little with mouse wheel, then the text appears. I can't share the document due copyright issues. But I can send it to your email if you request it. Reproducible: Always
*** This bug has been marked as a duplicate of bug 341583 ***