change router export mode

module/mv_url.js

@@ -0,0 +1,18 @@
+module.exports = (req, res, createWebAPIRequest, request) => {
+  const url = req.query.url;
+  const headers = {
+    Referer: "http://music.163.com/",
+    Cookie: "appver=1.5.0.75771;",
+    "Content-Type": "video/mp4",
+    Location: url
+  };
+  const options = {
+    header: headers,
+    url: url
+  };
+  request(options)
+    .on("error", err => {
+      res.send({ err });
+    })
+    .pipe(res);
+};