diff --git a/src/audio/audio_audiomanager.js b/src/audio/audio_audiomanager.js
index 882667f071c..a7f087860cd 100644
--- a/src/audio/audio_audiomanager.js
+++ b/src/audio/audio_audiomanager.js
@@ -64,7 +64,7 @@ pc.extend(pc, function () {
             }
         }
         this.listener = new pc.Listener(this);
-        
+
         this.volume = 1;
         this.suspended = false;
 
@@ -95,7 +95,7 @@ pc.extend(pc, function () {
             }
             return sound;
         },
-        
+
 
         /**
         * @private
@@ -151,7 +151,7 @@ pc.extend(pc, function () {
                 }
                 channel.play();
             }
-            
+
             return channel;
         },
 
@@ -160,7 +160,7 @@ pc.extend(pc, function () {
         },
 
         getVolume: function () {
-            return this.volume; 
+            return this.volume;
         },
 
         setVolume: function (volume) {
@@ -176,6 +176,13 @@ pc.extend(pc, function () {
         resume: function () {
             this.suspended = false;
             this.fire('resume');
+        },
+
+        destroy: function () {
+            if (this.context && this.context.close) {
+                this.context.close();
+                this.context = null;
+            }
         }
     };
 
diff --git a/src/framework/framework_application.js b/src/framework/framework_application.js
index 367a2cea6e6..e7eb86e319b 100644
--- a/src/framework/framework_application.js
+++ b/src/framework/framework_application.js
@@ -175,18 +175,23 @@ pc.extend(pc, function () {
 
             // check if all loading is done
             var done = function () {
+                // do not proceed if application destroyed
+                if (!self.graphicsDevice) {
+                    return;
+                }
+
                 if (!_done && _assets.done() && _scripts.done()) {
                     _done = true;
                     self.systems.script.preloading = false;
                     callback();
                 }
-            }
+            };
 
             // totals loading progress of assets and scripts
             var total = assets.length + this._scripts.length;
             var count = function () {
                 return _assets.count + _scripts.count;
-            }
+            };
 
             var i;
             if (_assets.length) {
@@ -841,7 +846,11 @@ pc.extend(pc, function () {
             this.graphicsDevice = null;
 
             this.renderer = null;
-            this._audioManager = null;
+
+            if (this._audioManager) {
+                this._audioManager.destroy();
+                this._audioManager = null;
+            }
 
             pc.net.http = new pc.net.Http();
         }
diff --git a/src/resources/resources_loader.js b/src/resources/resources_loader.js
index 53484137d91..bed33e447a7 100644
--- a/src/resources/resources_loader.js
+++ b/src/resources/resources_loader.js
@@ -65,6 +65,12 @@ pc.extend(pc, function () {
                 // new request
                 this._requests[key] = [callback];
                 handler.load(url, function (err, data) {
+                    // make sure key exists because loader
+                    // might have been destroyed by now
+                    if (!this._requests[key]) {
+                        return;
+                    }
+
                     var i, len = this._requests[key].length;
                     if (!err) {
                         var resource = handler.open(url, data);