Version: 0.3.160.3.170.4.00.4.10.4.20.4.30.4.40.4.50.4.60.4.70.4.80.4.90.4.100.4.110.4.120.4.130.4.140.4.150.4.170.4.181.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.71.0.81.0.91.0.101.0.111.0.121.0.131.0.141.1.01.1.11.1.21.1.31.1.41.1.51.2.01.2.11.2.21.2.32.0.02.0.1
module.exports = function(r, app, opts, NODE_ENV) {
app.useBefore('emptyFavicon', function env(req, res, next) {
req.env = req.query._env || req.get('x-env') || NODE_ENV;
next();
});
};