ariatemplates/ariatemplates — pull request #1375 by jakub-g (2014-12-12 13:03:52+00:00)
Title: fix #1374 utils.Dom.calculatePosition|getOffset discrepancy in webkit

Due to discrepancy how browsers report page scroll (setting `scrollTop`
either on `document.body` or `document.documentElement),
`aria.utils.Dom.getOffset()` returned wrong values in webkit browsers
for absolutely positioned elements when the viewport was scrolled.