And here's how to do the same in plain JS with ES6, available now in node (--harmony) and (I believe?) Chrome Canary.

    function *() {
      try {
        let body = yield request("https://x.io/");
        return yield request("https://x.io/?q=" + body.hash);
      } catch (e) {
        // do what you like with the error
      }
    }