From 6d59cc03f1a1aff13289ebeac5065acf3d0f8f67 Mon Sep 17 00:00:00 2001
From: Zixaphir <zixaphirmoxphar@gmail.com>
Date: Tue, 19 Mar 2013 09:52:19 -0700
Subject: [PATCH] We need to go deeper

---
 4chan-X.user.js     |  5 +----
 lib/polyfill.coffee | 13 +++++++------
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/4chan-X.user.js b/4chan-X.user.js
index faac376ed..197c6efb8 100644
--- a/4chan-X.user.js
+++ b/4chan-X.user.js
@@ -1109,10 +1109,7 @@
     visibility: function() {
       var event, prefix, property;
 
-      if ('visibilityState' in document) {
-        return;
-      }
-      if (!(prefix = ('webkitVisibilityState' in document ? 'webkit' : 'mozVisibilityState' in document ? 'moz' : void 0))) {
+      if ('visibilityState' in document || !(prefix = ('webkitVisibilityState' in document ? 'webkit' : 'mozVisibilityState' in document ? 'moz' : void 0))) {
         return;
       }
       property = prefix + 'VisibilityState';
diff --git a/lib/polyfill.coffee b/lib/polyfill.coffee
index 5a5b48e10..64224bfc6 100644
--- a/lib/polyfill.coffee
+++ b/lib/polyfill.coffee
@@ -3,12 +3,13 @@ Polyfill =
     Polyfill.visibility()
   visibility: ->
     # page visibility API
-    return if 'visibilityState' of document
-    return unless prefix = (
-      if 'webkitVisibilityState' of document
-        'webkit'
-      else if 'mozVisibilityState' of document
-        'moz'
+    return if 'visibilityState' of document or not (
+      prefix = (
+        if 'webkitVisibilityState' of document
+          'webkit'
+        else if 'mozVisibilityState' of document
+          'moz'
+      )
     )
 
     property = prefix + 'VisibilityState'