Revert "Preload important JS bundles while browser idle"

hyperion/renderer/browser-shim.js

@@ -20,4 +20,3 @@ global.navigator = {
 global.CSS = {
   escape: require('css.escape'),
 };
-global.IS_SERVER = true;

src/routes.js

@@ -1,7 +1,6 @@
 // @flow
 import * as React from 'react';
 import compose from 'recompose/compose';
-import PromiseQueue from './helpers/p-queue';
 import { Route, Switch, Redirect } from 'react-router';
 import styled, { ThemeProvider } from 'styled-components';
 import Loadable from 'react-loadable';
@@ -154,47 +153,6 @@ const ComposerFallback = signedOutFallback(Composer, () => (
   <Login redirectPath={`${CLIENT_URL}/new/thread`} />
 ));
 
-// On the client, preload the important routes when browser is idle and users has been using the app
-// for > 5s (i.e. all the data should hopefully have been loaded)
-if (!global || global.IS_SERVER !== true) {
-  const preload = [
-    FullscreenThreadView,
-    CommunityView,
-    CommunityLoginView,
-    UserView,
-    ChannelView,
-    Dashboard,
-    Notifications,
-  ];
-
-  requestAnimationFrame(() => {
-    // Fallback to setTimeout for older browsers with no requestIdleCallback support
-    const idle = window.requestIdleCallback || window.setTimeout;
-    const queue = new PromiseQueue({
-      concurrency: 2,
-    });
-    idle(() => {
-      // Wait 5 seconds to make sure the data has loaded
-      setTimeout(() => {
-        preload.forEach(bundle => {
-          queue
-            .add(() => {
-              return new Promise(res => {
-                idle(() => {
-                  bundle
-                    .preload()
-                    .then(res)
-                    .catch(err => console.error(err));
-                });
-              });
-            })
-            .catch(err => console.error(err));
-        });
-      }, 5000);
-    });
-  });
-}
-
 type Props = {
   currentUser: ?GetUserType,
   isLoadingCurrentUser: boolean,