#403 Esearch header setting error; update to work on XSweet branch

server/eutils/api.js

@@ -27,8 +27,9 @@ module.exports = app => {
     superagent.get(url).end((err, response) => {
       if (err) {
         res.send(JSON.stringify({ error: err }))
+      } else {
+        res.send(JSON.stringify(response.body))
       }
-      res.send(JSON.stringify(response.body))
     })
   })
   app.get('/eutils/efetch', (req, res) => {