js is transpiled

index.html

@@ -55,11 +55,20 @@
         </div>
     </footer>
 
-    <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
     <script src="https://unpkg.com/vue/dist/vue.min.js"></script>
-    <script type="text/babel">
-        const cartesian = arr => arr.reduce((a, b) => a.map(x => b.map(y => x.concat(y))).reduce((a, b) => a.concat(b), []), [[]])
-        const vm = new Vue({
+    <script>
+        var cartesian = function cartesian(arr) {
+            return arr.reduce(function (a, b) {
+                return a.map(function (x) {
+                    return b.map(function (y) {
+                        return x.concat(y);
+                    });
+                }).reduce(function (a, b) {
+                    return a.concat(b);
+                }, []);
+            }, [[]]);
+        };
+        var vm = new Vue({
             el: '#app',
             data: {
                 prefix: "* ",
@@ -68,22 +77,27 @@
                 n: "# Country\nDTUS\nDTCAN\n\n# Routing number\nValid routing number\nInvalid routing number\n\n# Service call\nIncluded in service call\nNot included in service call\n\n# Payment type/source\nOne time (Payment Central)\nPay plan (Pay Plan Maintenance Screen)\nScan/Import Screen"
             },
             methods: {
-                pluralize: (noun, count) =>
-                    `${noun}${count == 1 ? '' : 's'}`
+                pluralize: function pluralize(noun, count) {
+                    return "" + noun + (count == 1 ? '' : 's');
+                }
             },
             computed: {
-                combos() {
-                    return cartesian(
-                        this.n.trim().split('\n\n')
-                        .map(e =>
-                            e.split('\n')
-                            .map(e => e.trim())
-                            .filter(e => e[0] !== '#')
-                        )
-                    ).map(e => `${this.prefix}${e.join(this.delimiter)}${this.suffix}`)
+                combos: function combos() {
+                    var _this = this;
+
+                    return cartesian(this.n.trim().split('\n\n').map(function (e) {
+                        return e.split('\n').map(function (e) {
+                            return e.trim();
+                        }).filter(function (e) {
+                            return e[0] !== '#';
+                        });
+                    })).map(function (e) {
+                        return "" + _this.prefix + e.join(_this.delimiter) + _this.suffix;
+                    });
                 }
             }
-        })
+        });
+
     </script>
 
 </body>