Add polyfill.io call for brower compatibility

app/index.html

@@ -17,6 +17,8 @@
   <link rel="apple-touch-icon" href="../dev/images/favicon.png">
 
   <link rel="stylesheet" href="styles/index.scss">
+  <script crossorigin="anonymous"
+    src="https://polyfill.io/v3/polyfill.min.js?flags=gated&features=es2015%2Ces2016"></script>
   <script src="index.js"></script>
 </head>
 

package.json

@@ -18,34 +18,34 @@
     "clear": "rimraf public/{*,.*}"
   },
   "devDependencies": {
-    "autoprefixer": "^9.6.1",
-    "choo-devtools": "^3.0.1",
+    "autoprefixer": "^9.7.3",
+    "choo-devtools": "^3.0.3",
     "concurrently": "^4.1.2",
-    "cross-env": "^6.0.0",
+    "cross-env": "^6.0.3",
     "faker": "^4.1.0",
-    "parcel-bundler": "^1.12.3",
+    "parcel-bundler": "^1.12.4",
     "parcel-plugin-goodie-bag": "^2.0.0",
     "rimraf": "^3.0.0",
-    "sass": "^1.23.0-module.beta.1",
-    "sharp": "^0.23.0"
+    "sass": "^1.24.0",
+    "sharp": "^0.23.4"
   },
   "dependencies": {
     "babel-polyfill": "^6.26.0",
     "choo": "^7.0.0",
-    "fastify": "^2.8.0",
+    "fastify": "^2.11.0",
     "fastify-caching": "^5.0.0",
     "fastify-compress": "^0.11.0",
-    "fastify-cookie": "^3.1.0",
-    "fastify-helmet": "^3.0.1",
-    "fastify-jwt": "^1.0.0",
+    "fastify-cookie": "^3.4.0",
+    "fastify-helmet": "^3.0.2",
+    "fastify-jwt": "^1.2.1",
     "fastify-nodemailer": "^4.1.1",
     "fastify-sequelize": "^1.0.4",
-    "fastify-static": "^2.5.0",
-    "make-promises-safe": "^5.0.0",
+    "fastify-static": "^2.5.1",
+    "make-promises-safe": "^5.1.0",
     "marked": "^0.7.0",
     "mysql2": "^1.7.0",
     "node-fetch": "^2.6.0",
-    "pg": "^7.12.1",
+    "pg": "^7.16.0",
     "pg-hstore": "^2.3.3",
     "picnic": "^6.5.1",
     "sqlite": "^3.0.3"