nginx-proxy-manager/src/backend/lib/express/jwt.js

module.exports = function () {
    return function (req, res, next) {
        if (req.headers.authorization) {
            let parts = req.headers.authorization.split(' ');

            if (parts && parts[0] === 'Bearer' && parts[1]) {
                res.locals.token = parts[1];
            }
        }

        next();
    };
};