Visiting http://en.m.wikipedia.beta.wmflabs.org/wiki/Special:Nearby I see an error and the page does not work at all. Happens in enwiki too.
Chrome
Version 42.0.2311.135 (64-bit)
On Firefox 39 works fine.
On Firefox for Android it doesn't work at all.
On Chrome for Android either.
Error: Module not found: settings Error: Module not found: settings {stack: (...), message: "Module not found: settings"}log @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:176handler @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:153jQuery.Callbacks.fire @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:45jQuery.Callbacks.self.fireWith @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:46jQuery.Callbacks.self.fire @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:46mw.track @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:153runScript @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:161execute @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:162mw.loader.implement @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:168(anonymous function) @ VM110:91(anonymous function) @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:4jQuery.extend.globalEval @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:4mw.loader.work @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=20150506T…:164request @ load.php?debug=false&lang=en&modules=jquery%2Cmediawiki&only=scripts&skin=minerva&version=2015