jsFiddle really doesn't like loading Bing in the first place, so there
were yet more variables here.
In any case, the direct cause of the problem is that Bing's Mozilla
compat layer implements Element.prototype.currentStyle. This screws
up Moo's getComputedStyle, which detects what it thinks is the IE
native .currentStyle and acts accordingly. Essentially, you end up
using two frameworks, and you know how that goes…
Quick fix: reimplement getComputedStyle on Gecko to eliminate the
conditional.
if (Browser.Engine.gecko) {
Element.prototype.getComputedStyle = function(property){
//if (this.currentStyle) return
this.currentStyle[property.camelCase()];
var computed = this.getDocument().defaultView.getComputedStyle(this,
null);
return (computed) ? computed.getPropertyValue([property.hyphenate()]) :
null;
}
}
Of course, this is based on the Moo 1.2.5 getComputedStyle with the
critical line commented out. As/if this function changes in Moo, you
will have to maintain your fork. Have fun!
-- S.