Wikimedia Bugzilla is closed!

Wikimedia migrated from Bugzilla to Phabricator. Bug reports are handled in Wikimedia Phabricator.
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* open firefox
* load http://en.m.wikipedia.org/
* open web console or JS error console or firebug
* click anywhere
* see "event is not defined" error at:

document.body.onmousedown = function() {
	whichElement(event);
}

This should now be fixed in r101734.

Confirmed fixed on my local install. thx!