Looking at the generated code:

  (function(v) {
        try {
            v = d.technologies.map(d.function(d.t) {
                    d.return d.t
                } finally {
                    return !v && v !== 0 ? "" : v
                }
            }).call(d), ").join('|') }"].join("")

There's two problems: (1) prefixing keywords with 'd.' which may possibly be solved by skipping keywords or with(d){...} and (2) the ").join('|') }" code became data.