isBrowserSupported() function (that returns true if specified browser supports Session History Management) defined in javascripts/externals/epoch.js is outdated. It only matches Chrome versions 5+ and iOS browser versions 5+. Although, since many more browsers currently supports SHM (http://caniuse.com/history), it's time to update it.
Version: unspecified
Severity: trivial
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=57329