width() Issue - works with jQuery

[cwbeck]

There is an issue referencing elements which exist in another frame. If a nested frame is to access the parent window and pass this into the constructor Zepto(topWindow).find(".some-elm") this will correctly return the referenced object, however when .width() is called, it somehow looses scope such that Zepto(topWindow).find(".some-elm").width() is undefined - This is the only breaking change between our jQuery library and Zepto and the only reason we can't swap over.

[cwbeck]

It returns return {top: 0, left: 0} from here...

offset: function(coordinates){

                debugger;

                if (coordinates) return this.each(function(index){
                    var $this = $(this),
                        coords = funcArg(this, coordinates, index, $this.offset()),
                        parentOffset = $this.offsetParent().offset(),
                        props = {
                            top:  coords.top  - parentOffset.top,
                            left: coords.left - parentOffset.left
                        }

                    if ($this.css('position') == 'static') props['position'] = 'relative'
                    $this.css(props)
                })
                if (!this.length) return null
                if (document.documentElement !== this[0] && !$.contains(document.documentElement, this[0]))
                    return {top: 0, left: 0}
                var obj = this[0].getBoundingClientRect()
                return {
                    left: obj.left + window.pageXOffset,
                    top: obj.top + window.pageYOffset,
                    width: Math.round(obj.width),
                    height: Math.round(obj.height)
                }
            }