Function removeBackdrop

js/popovers.js:73–81

(popover)

	}());
	var removeBackdropTimer;
	var removeBackdrop = function(popover) {
		backdrop.setAttribute('style', 'opacity:0');
		$.targets.popover = $.targets._popover = null; //reset
		removeBackdropTimer = $.later(function() {
			if (!popover.classList.contains(CLASS_ACTIVE) && backdrop.parentNode && backdrop.parentNode === document.body) {
				document.body.removeChild(backdrop);
			}
		}, 350);
	};
	window.addEventListener('tap', function(e) {
		if (!$.targets.popover) {
			return;