diff --git a/LICENSE b/LICENSE
index 340559c95..f3beefff8 100755
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,5 @@
 /*
-* 4chan X - Version 1.2.44 - 2013-12-24
+* 4chan X - Version 1.2.44 - 2013-12-25
 *
 * Licensed under the MIT license.
 * https://github.com/seaweedchan/4chan-x/blob/master/LICENSE
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index 8edcc1bde..a43196151 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -22,7 +22,7 @@
 // ==/UserScript==
 
 /*
-* 4chan X - Version 1.2.44 - 2013-12-24
+* 4chan X - Version 1.2.44 - 2013-12-25
 *
 * Licensed under the MIT license.
 * https://github.com/seaweedchan/4chan-x/blob/master/LICENSE
@@ -3564,9 +3564,7 @@
       }
       $.on(root, 'mousemove', o.hover);
       o.workaround = function(e) {
-        var _ref;
-
-        if (_ref = e.target, __indexOf.call(root, _ref) < 0) {
+        if (!root.contains(e.target)) {
           return o.hoverend();
         }
       };
@@ -4322,7 +4320,7 @@
       return $.prepend(this.OP.nodes.root, ThreadHiding.makeButton(this, 'hide'));
     },
     onIndexBuild: function(_arg) {
-      var i, nodes, root, thread, _i, _len, _ref;
+      var i, nodes, root, thread, _i, _len;
 
       nodes = _arg.detail;
       for (i = _i = 0, _len = nodes.length; _i < _len; i = _i += 2) {
@@ -4333,7 +4331,7 @@
         }
         if (!thread.stub) {
           nodes[i + 1].hidden = true;
-        } else if (_ref = thread.stub, __indexOf.call(root, _ref) < 0) {
+        } else if (!root.contains(thread.stub)) {
           ThreadHiding.makeStub(thread, root);
         }
       }
@@ -7853,7 +7851,7 @@
         return ImageExpand.toggle(Get.postFromNode(this));
       },
       toggleAll: function() {
-        var ID, file, func, post, _i, _len, _ref, _ref1, _ref2;
+        var ID, file, func, post, _i, _len, _ref, _ref1;
 
         $.event('CloseMenu');
         if (ImageExpand.on = $.hasClass(ImageExpand.EAI, 'expand-all-shortcut')) {
@@ -7872,7 +7870,7 @@
           for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
             post = _ref1[_i];
             file = post.file;
-            if (!(file && file.isImage && (_ref2 = post.nodes.root, __indexOf.call(doc, _ref2) >= 0))) {
+            if (!(file && file.isImage && doc.contains(post.nodes.root))) {
               continue;
             }
             if (ImageExpand.on && (!Conf['Expand spoilers'] && file.isSpoiler || Conf['Expand from here'] && Header.getTopOf(file.thumb) < 0)) {
@@ -8116,7 +8114,7 @@
       var URL, post, src, timeoutID,
         _this = this;
 
-      if (__indexOf.call(doc, this) < 0) {
+      if (!doc.contains(this)) {
         return;
       }
       post = g.posts[this.dataset.fullID];
diff --git a/builds/crx/script.js b/builds/crx/script.js
index 0eba1558f..9e825da8a 100644
--- a/builds/crx/script.js
+++ b/builds/crx/script.js
@@ -1,6 +1,6 @@
 // Generated by CoffeeScript
 /*
-* 4chan X - Version 1.2.44 - 2013-12-24
+* 4chan X - Version 1.2.44 - 2013-12-25
 *
 * Licensed under the MIT license.
 * https://github.com/seaweedchan/4chan-x/blob/master/LICENSE
@@ -4325,7 +4325,7 @@
       return $.prepend(this.OP.nodes.root, ThreadHiding.makeButton(this, 'hide'));
     },
     onIndexBuild: function(_arg) {
-      var i, nodes, root, thread, _i, _len, _ref;
+      var i, nodes, root, thread, _i, _len;
 
       nodes = _arg.detail;
       for (i = _i = 0, _len = nodes.length; _i < _len; i = _i += 2) {
@@ -4336,7 +4336,7 @@
         }
         if (!thread.stub) {
           nodes[i + 1].hidden = true;
-        } else if (_ref = thread.stub, __indexOf.call(root, _ref) < 0) {
+        } else if (!root.contains(thread.stub)) {
           ThreadHiding.makeStub(thread, root);
         }
       }
@@ -7836,7 +7836,7 @@
         return ImageExpand.toggle(Get.postFromNode(this));
       },
       toggleAll: function() {
-        var ID, file, func, post, _i, _len, _ref, _ref1, _ref2;
+        var ID, file, func, post, _i, _len, _ref, _ref1;
 
         $.event('CloseMenu');
         if (ImageExpand.on = $.hasClass(ImageExpand.EAI, 'expand-all-shortcut')) {
@@ -7855,7 +7855,7 @@
           for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
             post = _ref1[_i];
             file = post.file;
-            if (!(file && file.isImage && (_ref2 = post.nodes.root, __indexOf.call(doc, _ref2) >= 0))) {
+            if (!(file && file.isImage && doc.contains(post.nodes.root))) {
               continue;
             }
             if (ImageExpand.on && (!Conf['Expand spoilers'] && file.isSpoiler || Conf['Expand from here'] && Header.getTopOf(file.thumb) < 0)) {
@@ -8099,7 +8099,7 @@
       var URL, post, src, timeoutID,
         _this = this;
 
-      if (__indexOf.call(doc, this) < 0) {
+      if (!doc.contains(this)) {
         return;
       }
       post = g.posts[this.dataset.fullID];
diff --git a/src/Filtering/ThreadHiding.coffee b/src/Filtering/ThreadHiding.coffee
index 2400f55ed..d803c22bc 100755
--- a/src/Filtering/ThreadHiding.coffee
+++ b/src/Filtering/ThreadHiding.coffee
@@ -21,7 +21,7 @@ ThreadHiding =
       continue unless thread.isHidden
       unless thread.stub
         nodes[i + 1].hidden = true
-      else unless thread.stub in root
+      else unless root.contains thread.stub
         # When we come back to a page, the stub is already there.
         ThreadHiding.makeStub thread, root
     return
diff --git a/src/General/UI.coffee b/src/General/UI.coffee
index 844212ffe..2636bf415 100755
--- a/src/General/UI.coffee
+++ b/src/General/UI.coffee
@@ -326,7 +326,7 @@ UI = do ->
     $.on root, 'mousemove', o.hover
     <% if (type === 'userscript') { %>
     # Workaround for https://github.com/MayhemYDG/4chan-x/issues/377
-    o.workaround = (e) -> o.hoverend() unless e.target in root
+    o.workaround = (e) -> o.hoverend() unless root.contains e.target
     $.on doc,  'mousemove', o.workaround
     <% } %>
 
diff --git a/src/Images/ImageExpand.coffee b/src/Images/ImageExpand.coffee
index d82a20fe2..135a50481 100755
--- a/src/Images/ImageExpand.coffee
+++ b/src/Images/ImageExpand.coffee
@@ -43,7 +43,7 @@ ImageExpand =
       for ID, post of g.posts
         for post in [post].concat post.clones
           {file} = post
-          continue unless file and file.isImage and post.nodes.root in doc
+          continue unless file and file.isImage and doc.contains post.nodes.root
           if ImageExpand.on and
             (!Conf['Expand spoilers'] and file.isSpoiler or
             Conf['Expand from here'] and Header.getTopOf(file.thumb) < 0)
diff --git a/src/Images/ImageHover.coffee b/src/Images/ImageHover.coffee
index e09cd55f3..9116a6c95 100755
--- a/src/Images/ImageHover.coffee
+++ b/src/Images/ImageHover.coffee
@@ -23,7 +23,7 @@ ImageHover =
       asapTest: -> el.naturalHeight
     $.on el, 'error', ImageHover.error
   error: ->
-    return unless @ in doc
+    return unless doc.contains @
     post = g.posts[@dataset.fullID]
 
     src = @src.split '/'