mattkersley/Responsive-Design-Testing — pull request #12 by scudco (2012-11-26 04:39:30+00:00)
Title: Add support for interfaces with invisible scrollbars

Not all browsers and operating systems display scrollbars. Great idea to add the 15px for most browsers with fixed, always-visible scrollbars, but it is inaccurate for the interfaces with invisible scrollbars (e.g., Mountain Lion with Google Chrome).

Thanks for this great tool :D