Fix display at start of offline dinosaur game [iOS]

components/neterror/resources/offline.js

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 (function() {
 'use strict';
 /**
  * T-Rex runner.
  * @param {string} outerContainerId Outer containing element id.
  * @param {Object} opt_config
  * @constructor
@@ skipping 273 matching lines @@
    */
   loadImages: function() {
     if (IS_HIDPI) {
       Runner.imageSprite = document.getElementById('offline-resources-2x');
       this.spriteDef = Runner.spriteDefinition.HDPI;
     } else {
       Runner.imageSprite = document.getElementById('offline-resources-1x');
       this.spriteDef = Runner.spriteDefinition.LDPI;
     }
 
-    this.init();
+    if(!Runner.imageSprite.complete) {
+      // If the images are not yet loaded, add a listener.
+      Runner.imageSprite.runner = this;
+
+      Runner.imageSprite.onload = function() {
+        this.runner.init();
+      }
+    } else {
+      this.init();
+    }
   },
 
   /**
    * Load and decode base 64 encoded sounds.
    */
   loadSounds: function() {
     if (!IS_IOS) {
       this.audioContext = new AudioContext();
 
       var resourceTemplate =
@@ skipping 2376 matching lines @@
 
   /**
    * Add a new cloud to the horizon.
    */
   addCloud: function() {
     this.clouds.push(new Cloud(this.canvas, this.spritePos.CLOUD,
         this.dimensions.WIDTH));
   }
 };
 })();