Reproduction steps:
- Visit any page on https://secure.phabricator.com
Expected result:
Page loads, 1 scroll bar appears on the right.
Actual result:
Page loads, 2 scroll bars appear on the right, with the leftmost one working and the rightmost one not.
Browser information:
This occurs on Chrome 53.0.2785.116 m, Opera 40.0.2308.62, Firefox Developer Edition 51.0a2 (2016-10-01) (32-bit) and probably on other browsers too.
Screenshots:
