Use 4chan's API for the Thread Updater. Can't test right now but it should be working.

4chan_x.user.js

@@ -2933,9 +2933,9 @@
           return !(d.hidden || d.oHidden || d.mozHidden || d.webkitHidden);
         };
       },
-      update: function() {
+      load: function() {
-        var count, doc, id, lastPost, nodes, reply, scroll, _i, _len, _ref, _ref1, _ref2;
+        switch (this.status) {
-        if (this.status === 404) {
+          case 404:
             Updater.set('timer', '');
             Updater.set('count', 404);
             Updater.count.className = 'warning';
@@ -2948,56 +2948,61 @@
             }
             Unread.update(true);
             QR.abort();
-          return;
+            break;
-        }
+          case 0:
-        if ((_ref = this.status) !== 0 && _ref !== 200 && _ref !== 304) {
+          case 304:
-          if (Conf['Verbose']) {
-            Updater.set('count', this.statusText);
-            Updater.count.className = 'warning';
-          }
-          Updater.unsuccessfulFetchCount++;
-          return;
-        }
-        Updater.unsuccessfulFetchCount++;
-        Updater.set('timer', -Updater.getInterval());
             /*
                       Status Code 304: Not modified
                       By sending the `If-Modified-Since` header we get a proper status code, and no response.
-              This saves bandwidth for both the user and the servers, avoid unnecessary computation,
+                      This saves bandwidth for both the user and the servers and avoid unnecessary computation.
-              and won't load images and scripts when parsing the response.
             */
 
-        if ((_ref1 = this.status) === 0 || _ref1 === 304) {
+            Updater.unsuccessfulFetchCount++;
+            Updater.set('timer', -Updater.getInterval());
             if (Conf['Verbose']) {
               Updater.set('count', '+0');
               Updater.count.className = null;
             }
-          return;
+            break;
-        }
+          case 200:
             Updater.lastModified = this.getResponseHeader('Last-Modified');
-        doc = d.implementation.createHTMLDocument('');
+            Updater.cb.update(JSON.parse(this.response).posts);
-        doc.documentElement.innerHTML = this.response;
+            Updater.set('timer', -Updater.getInterval());
+            break;
+          default:
+            Updater.unsuccessfulFetchCount++;
+            Updater.set('timer', -Updater.getInterval());
+            if (Conf['Verbose']) {
+              Updater.set('count', this.statusText);
+              Updater.count.className = 'warning';
+            }
+        }
+        return delete Updater.request;
+      },
+      update: function(posts) {
+        var count, id, lastPost, nodes, post, scroll, _i, _len, _ref;
         lastPost = Updater.thread.lastElementChild;
-        id = lastPost.id.slice(2);
+        id = +lastPost.id.slice(2);
         nodes = [];
-        _ref2 = $$('.replyContainer', doc).reverse();
+        _ref = posts.reverse();
-        for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
+        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
-          reply = _ref2[_i];
+          post = _ref[_i];
-          if (reply.id.slice(2) <= id) {
+          if (post.no <= id) {
             break;
           }
-          nodes.push(reply);
+          nodes.push(Build.postFromObject(post));
         }
         count = nodes.length;
         if (Conf['Verbose']) {
           Updater.set('count', "+" + count);
           Updater.count.className = count ? 'new' : null;
         }
-        if (!count) {
+        if (count) {
+          Updater.unsuccessfulFetchCount = 0;
+        } else {
+          Updater.unsuccessfulFetchCount++;
           return;
         }
-        Updater.unsuccessfulFetchCount = 0;
-        Updater.set('timer', -Updater.getInterval());
         scroll = Conf['Scrolling'] && Updater.scrollBG() && lastPost.getBoundingClientRect().bottom - d.documentElement.clientHeight < 25;
         $.add(Updater.thread, nodes.reverse());
         if (scroll) {
@@ -3044,9 +3049,9 @@
       if ((_ref = Updater.request) != null) {
         _ref.abort();
       }
-      url = location.pathname + '?' + Date.now();
+      url = "//api.4chan.org/" + g.BOARD + "/res/" + g.THREAD_ID + ".json";
       return Updater.request = $.ajax(url, {
-        onload: Updater.cb.update
+        onload: Updater.cb.load
       }, {
         headers: {
           'If-Modified-Since': Updater.lastModified

changelog

@@ -1,6 +1,7 @@
 master
 - Mayhem
   Use 4chan's API to fetch posts for:
+    - Thread Updater.
     - Quote Inlining.
     - Quote Previewing.
 

script.coffee

@@ -2343,8 +2343,9 @@ Updater =
           -> true
         else
           -> !(d.hidden or d.oHidden or d.mozHidden or d.webkitHidden)
-    update: ->
+    load: ->
-      if @status is 404
+      switch @status
+        when 404
           Updater.set 'timer', ''
           Updater.set 'count', 404
           Updater.count.className = 'warning'
@@ -2356,51 +2357,48 @@ Updater =
             d.title = d.title.match(/^.+-/)[0] + ' 404'
           Unread.update true
           QR.abort()
-        return
-      unless @status in [0, 200, 304]
         # XXX 304 -> 0 in Opera
-        if Conf['Verbose']
+        when 0, 304
-          Updater.set 'count', @statusText
-          Updater.count.className = 'warning'
-        Updater.unsuccessfulFetchCount++
-        return
-
-      Updater.unsuccessfulFetchCount++
-      Updater.set 'timer', -Updater.getInterval()
-
           ###
           Status Code 304: Not modified
           By sending the `If-Modified-Since` header we get a proper status code, and no response.
-      This saves bandwidth for both the user and the servers, avoid unnecessary computation,
+          This saves bandwidth for both the user and the servers and avoid unnecessary computation.
-      and won't load images and scripts when parsing the response.
           ###
-      if @status in [0, 304]
+          Updater.unsuccessfulFetchCount++
-        # XXX 304 -> 0 in Opera
+          Updater.set 'timer', -Updater.getInterval()
           if Conf['Verbose']
             Updater.set 'count', '+0'
             Updater.count.className = null
-        return
+        when 200
           Updater.lastModified = @getResponseHeader 'Last-Modified'
-
+          Updater.cb.update JSON.parse(@response).posts
-      doc = d.implementation.createHTMLDocument ''
+          Updater.set 'timer', -Updater.getInterval()
-      doc.documentElement.innerHTML = @response
+        else
-
+          Updater.unsuccessfulFetchCount++
+          Updater.set 'timer', -Updater.getInterval()
+          if Conf['Verbose']
+            Updater.set 'count', @statusText
+            Updater.count.className = 'warning'
+      delete Updater.request
+    update: (posts) ->
       lastPost = Updater.thread.lastElementChild
-      id = lastPost.id[2..]
+      id = +lastPost.id[2..]
       nodes = []
-      for reply in $$('.replyContainer', doc).reverse()
+      for post in posts.reverse()
-        break if reply.id[2..] <= id #make sure to not insert older posts
+        break if post.no <= id # Make sure to not insert older posts.
-        nodes.push reply
+        nodes.push Build.postFromObject post
 
       count = nodes.length
       if Conf['Verbose']
         Updater.set 'count', "+#{count}"
         Updater.count.className = if count then 'new' else null
 
-      return unless count
+      if count
-
         Updater.unsuccessfulFetchCount = 0
-      Updater.set 'timer', -Updater.getInterval()
+      else
+        Updater.unsuccessfulFetchCount++
+        return
+
       scroll = Conf['Scrolling'] and Updater.scrollBG() and
         lastPost.getBoundingClientRect().bottom - d.documentElement.clientHeight < 25
       $.add Updater.thread, nodes.reverse()
@@ -2442,8 +2440,10 @@ Updater =
     Updater.set 'timer', 0
     Updater.request?.abort()
     # Fool the cache.
-    url = location.pathname + '?' + Date.now()
+    # XXX is fooling the cache still necessary?
-    Updater.request = $.ajax url, onload: Updater.cb.update,
+    # url = "//api.4chan.org/#{g.BOARD}/res/#{g.THREAD_ID}.json?{Date.now()}"
+    url = "//api.4chan.org/#{g.BOARD}/res/#{g.THREAD_ID}.json"
+    Updater.request = $.ajax url, onload: Updater.cb.load,
       headers: 'If-Modified-Since': Updater.lastModified
 
 Watcher =