greydata

  (function() {
	// https://developers.google.com/analytics/devguides/collection/analyticsjs/
	var noopfn = function() {
		;
	};
	var noopnullfn = function() {
		return null;
	};
	//
	var Tracker = function() {
		;
	};
	var p = Tracker.prototype;
	p.get = noopfn;
	p.set = noopfn;
	p.send = noopfn;
	//
	var w = window,
		gaName = w.GoogleAnalyticsObject || 'ga';
	var ga = function() {
		var len = arguments.length;
		if ( len === 0 ) {
			return;
		}
		var f = arguments[len-1];
		if ( typeof f !== 'object' || f === null || typeof f.hitCallback !== 'function' ) {
			return;
		}
		try {
			f.hitCallback();
		} catch (ex) {
		}
	};
	ga.create = function() {
		return new Tracker();
	};
	ga.getByName = noopnullfn;
	ga.getAll = function() {
		return [];
	};
	ga.remove = noopfn;
	w[gaName] = ga;
	// https://github.com/gorhill/uBlock/issues/3075
	var dl = w.dataLayer;
	if ( dl instanceof Object && dl.hide instanceof Object && typeof dl.hide.end === 'function' ) {
		dl.hide.end();
	}
  })();