Author: moussa

Description:
Occasionally when resizing the window, causing the right navigation tabs to start to collapse, the tabs will begin to cycle through the collapsing and expanding animations over and over. A video of the bug in action on mobile can be seen here https://www.dropbox.com/s/rph1olxmxoinwv8/Video%2015-12-2013%2003%2055%2014.mov.

This is reproducible, with some luck, on Wikipedia by visiting the Main Page talk page and resizing the page until the point at which the 'New section' tab collapses. By shrinking and expanding the width of the window a few pixels around this point and refreshing the page, the bug will eventually occur.

Version: 1.23.0
Severity: normal