Khan/khan-exercises — Issue #12920: Addition 4 - progress bar
Author: KhanBugz
Created: 2012-02-02 19:22:00+00:00
State: open
Labels: firefox, other, snowleo

it will not show the progress bar that increases and decreases.

[addition_4.html?seed=174&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_4.html?seed=174&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_4.html?seed=174&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22760%5C%22%22%2C10%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22760%5C%22%22%2C37%5D%5D)

["760","760"]

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13

MathJax is loaded, ready, queue length: 0