twbs/bootstrap — pull request #14492 by cvrebert (2014-08-30 20:12:50+00:00)
Title: Handle lack of .width and .height from getBoundingClientRect() in IE8

Closes #14093. Correction to #14090.
New relevant docs: https://developer.mozilla.org/en-US/docs/Web/API/Element.getBoundingClientRect#Browser_compatibility
This takes the same approach as ZeroClipboard.