I wonder if anyone else got this error on Firefox... NS_ERROR_FAILURE
ColorWheel Bug
It seems to be a combo of TweenMax and SVG in Firefox in Mac and Windows.
Chrome looks correct. There should be two color wheels on the bottom of the screen. Pressing and releasing them should select colors.
Just to put my 2 cents..
Firefox has a bug report someone submitted .. but it is really not a bug it is what the SVG spec dictates, that when you try to access an element that is an SVG element that is either missing, has display:none or not visible. It will throw that NS_ERROR_FAILURE, since any element that is missing, has display:none or hidden will be removed from the render tree making it throw that error since it does not exist.
https://bugzilla.mozilla.org/show_bug.cgi?id=612118