cant catch dns error?

gistfile1.txt

var Weed = require("weed-fs");
var Promise = require('bluebird');

try {

  var weedfs     = new Weed({
      server:     "badName",
      port:       "9333"
  });

  var weedWrite = Promise.promisify(weedfs.write, weedfs);

  weedWrite('./README.md').then(function(result) {
      console.log(result);
  }).catch(function(e) {
      console.log("Error writing file", e);
  });

} catch (e) {

  console.log("Weed Client error", e);

}


bash-3.2$ node dev.js 

Error: getaddrinfo ENOTFOUND
    at errnoException (dns.js:37:11)
    at Object.onanswer [as oncomplete] (dns.js:124:16)
bash-3.2$