Use waitForAngular() so e2e tests don't run while data is still loading

e2e/app.po.ts

@@ -2,7 +2,8 @@ import { browser, element, by } from 'protractor';
 
 export class ProtractorPage {
   navigateTo() {
-    return browser.get('/');
+    return browser.get('/')
+      .then(() => browser.waitForAngular());
   }
 
   getPageTitleText() {