Set the user email initially in stripe form

assets/javascripts/discourse/routes/patrons.js.es6

@@ -1,9 +1,20 @@
+import { ajax } from "discourse/lib/ajax";
+
 export default Discourse.Route.extend({
   model() {
-    return Ember.Object.create({
+    const user = Ember.Object.create({
       name: "",
       email: "",
       phone: ""
     });
+
+    return ajax("/patrons/patrons", {
+      method: "get"
+    }).then((result) => {
+      user.set('email', result.email)
+      return user;
+    }).catch(() => {
+      return user;
+    });
   }
 });