diff --git a/package.json b/package.json
index 27e7b15..f4033ce 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "test": "node_modules/.bin/mocha --require babel-core/register --recursive"
   },
   "dependencies": {
+    "babel-polyfill": "6.26.0",
     "body-parser": "1.18.2",
     "busboy": "0.2.14",
     "express": "4.16.2",
diff --git a/src/main.js b/src/main.js
index 8a63cb9..665b29f 100644
--- a/src/main.js
+++ b/src/main.js
@@ -3,6 +3,7 @@
  * See license text in LICENSE.txt or at https://opensource.dbc.dk/licenses/gpl-3.0/
  */
 
+import "babel-polyfill";
 import React from "react";
 import ReactDOM from "react-dom";
 
diff --git a/webpack.common.js b/webpack.common.js
index e0cefb8..4ade5ea 100644
--- a/webpack.common.js
+++ b/webpack.common.js
@@ -6,7 +6,10 @@
 const path = require("path");
 
 module.exports = {
-    entry: path.resolve(__dirname, "src", "main.js"),
+    entry: [
+        'babel-polyfill',
+        path.resolve(__dirname, "src", "main.js")
+    ],
     output: {
         path: path.resolve(__dirname, "src", "static", "js"),
         filename: "bundle.js"
diff --git a/yarn.lock b/yarn.lock
index 67a285e..cbd95c6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -606,7 +606,7 @@ babel-plugin-transform-strict-mode@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-polyfill@^6.26.0:
+babel-polyfill@6.26.0, babel-polyfill@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.26.0.tgz#379937abc67d7895970adc621f284cd966cf2153"
   dependencies: