mootools/mootools-core — pull request #2556 by gonchuki (2014-01-27 21:55:30+00:00)
Title: make test more lax so it accepts either 0px 0px or 0% 0% as valid defaul...

...t values for background-position

This fixes the failing tests on IE11 and Firefox as their reported defaults are in percentage units instead of pixels. Going forward with this as discussed on #2554