Update some travis stuff

.travis.yml

@@ -1,7 +1,7 @@
 language: node_js
 
 addons:
-  firefox: "39.0"
+  firefox: "57.0"
 
 sudo: false
 
@@ -10,7 +10,7 @@ before_install:
   - "sh -e /etc/init.d/xvfb start"
 
 node_js:
-  - '4'
+  - '10'
 
 script:
   - npm i

lib/routes/oauth.js

@@ -24,7 +24,7 @@ var DIFFERENT_BROWSER_ERROR = 3005;
  * OAuth Login, redirects to FxA
  */
 router.get('/login', function(req, res) {
-  var nonce = crypto.randomBytes(32).toString('hex'); // eslint-disable-line 
+  var nonce = crypto.randomBytes(32).toString('hex'); // eslint-disable-line
   oauthFlows[nonce] = true;
   req.session.state = nonce;
   return res.redirect(redirectUrl('signin', nonce));