diff --git a/app/index.js b/app/index.js
index cbc763b..a4d4bee 100644
--- a/app/index.js
+++ b/app/index.js
@@ -6,6 +6,11 @@
  * @exports app/index
  *
  */
+import 'core-js/stable';
+import 'regenerator-runtime/runtime';
+import 'core-js/es/symbol';
+
+
 import 'angular/angular-csp.css';
 import 'bootstrap/dist/css/bootstrap.css';
 
@@ -133,16 +138,16 @@
         function($httpProvider) {
           $httpProvider.interceptors.push('apiInterceptor');
           $httpProvider.defaults.headers.common = {
-            'Accept': 'application/json'
+            'Accept': 'application/json; charset=utf-8'
           };
           $httpProvider.defaults.headers.post = {
-            'Content-Type': 'application/json'
+            'Content-Type': 'application/json; charset=utf-8'
           };
           $httpProvider.defaults.headers.put = {
-            'Content-Type': 'application/json'
+            'Content-Type': 'application/json; charset=utf-8'
           };
           $httpProvider.defaults.headers.patch = {
-            'Content-Type': 'application/json'
+            'Content-Type': 'application/json; charset=utf-8'
           };
         }
       ])