xForwardedFor.js

gistfile1.js

exports.xForwardedFor = function(req, res, next) {
    if (!req.headers['x-forwarded-for']) {
        if (req.headers['x-iis-node-remote_addr']) {
            req.headers['x-forwarded-for'] = req.headers['x-iis-node-remote_addr'];
        }
    }

    next();
};