in lib/dd.breakpoints.js [453:465]
is = function(min, max, property) {
if (_options.isResponsive === false) {
return _bpIsValidForStatic(min, max, property);
}
if (window.matchMedia) {
return window.matchMedia(get(min, max, property)).matches;
}
console.warn('DD.bp: Match Media not supported by this browser. Consider adding a polyfill.');
return false;
};