Add fetch polyfill.

package.json

@@ -27,7 +27,8 @@
     "vue-router": "^2.5.3",
     "vue-template-compiler": "^2.3.4",
     "vue-timeago": "^3.1.2",
-    "vuex": "^2.3.1"
+    "vuex": "^2.3.1",
+    "whatwg-fetch": "^2.0.3"
   },
   "devDependencies": {
     "autoprefixer": "^6.4.0",

src/services/api/api.service.js

@@ -24,6 +24,7 @@ const QVITTER_USER_TIMELINE_URL = '/api/qvitter/statuses/user_timeline.json'
 // const USER_URL = '/api/users/show.json'
 
 import { each, map } from 'lodash'
+import 'whatwg-fetch'
 
 const oldfetch = window.fetch
 

yarn.lock

@@ -5816,6 +5816,10 @@ webpack@^1.13.2:
     watchpack "^0.2.1"
     webpack-core "~0.6.9"
 
+whatwg-fetch@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"
+
 whet.extend@~0.9.9:
   version "0.9.9"
   resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"