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diff --git a/data/extensions/jid1-KtlZuoiikVfFew@jetpack/lib/http_observer/stream_loader.js b/data/extensions/jid1-KtlZuoiikVfFew@jetpack/lib/http_observer/stream_loader.js
new file mode 100644
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+++ b/data/extensions/jid1-KtlZuoiikVfFew@jetpack/lib/http_observer/stream_loader.js
@@ -0,0 +1,160 @@
+/**
+ * GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript.
+ * *
+ * Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros
+ * Copyright (C) 2014, 2015 Nik Nyby
+ *
+ * This file is part of GNU LibreJS.
+ *
+ * GNU LibreJS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GNU LibreJS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU LibreJS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+var {Cc, Ci, Cu, Cm, Cr} = require("chrome");
+
+const processResponse = require('./process_response');
+const CHARSETS = [
+    '866', 'ansi_x3.4-1968', 'arabic', 'ascii', 'asmo-708', 'big5',
+    'big5-hkscs', 'chinese', 'cn-big5', 'cp1250', 'cp1251', 'cp1252',
+    'cp1253', 'cp1254', 'cp1255', 'cp1256', 'cp1257', 'cp1258',
+    'cp819', 'cp866', 'csbig5', 'cseuckr', 'cseucpkdfmtjapanese',
+    'csgb2312', 'csibm866', 'csiso2022jp', 'csiso2022kr', 'csiso58gb231280',
+    'csiso88596e', 'csiso88596i', 'csiso88598e', 'csiso88598i', 'csisolatin1',
+    'csisolatin2', 'csisolatin3', 'csisolatin4', 'csisolatin5', 'csisolatin6',
+    'csisolatin9', 'csisolatinarabic', 'csisolatincyrillic',
+    'csisolatingreek', 'csisolatinhebrew', 'cskoi8r', 'csksc56011987',
+    'csmacintosh', 'csshiftjis', 'cyrillic', 'dos-874', 'ecma-114',
+    'ecma-118', 'elot_928', 'euc-jp', 'euc-kr', 'gb18030', 'gb2312',
+    'gb_2312', 'gb_2312-80', 'gbk', 'greek', 'greek8', 'hebrew',
+    'hz-gb-2312', 'ibm819', 'ibm866', 'iso-2022-cn', 'iso-2022-cn-ext',
+    'iso-2022-jp', 'iso-2022-kr', 'iso88591', 'iso_8859-1', 'iso-8859-1',
+    'iso8859-1', 'iso885910', 'iso-8859-10', 'iso8859-10', 'iso885911',
+    'iso-8859-11', 'iso8859-11', 'iso_8859-1:1987', 'iso885913', 'iso-8859-13',
+    'iso8859-13', 'iso885914', 'iso-8859-14', 'iso8859-14', 'iso885915',
+    'iso-8859-15', 'iso8859-15', 'iso-8859-16', 'iso88592', 'iso_8859-2',
+    'iso-8859-2', 'iso8859-2', 'iso_8859-2:1987', 'iso88593', 'iso_8859-3',
+    'iso-8859-3', 'iso8859-3', 'iso_8859-3:1988', 'iso88594', 'iso_8859-4',
+    'iso-8859-4', 'iso8859-4', 'iso_8859-4:1988', 'iso88595', 'iso_8859-5',
+    'iso-8859-5', 'iso_8859-5:1988', 'iso88596', 'iso_8859-6', 'iso-8859-6',
+    'iso8859-6', 'iso_8859-6:1987', 'iso-8859-6-e', 'iso-8859-6-i', 'iso88597',
+    'iso_8859-7', 'iso-8859-7', 'iso8859-7', 'iso_8859-7:1987', 'iso88598',
+    'iso_8859-8', 'iso-8859-8', 'iso8859-8', 'iso_8859-8:1988', 'iso-8859-8-e',
+    'iso-8859-8i', 'iso-8859-8-i', 'iso88599', 'iso_8859-9', 'iso-8859-9',
+    'iso8859-9', 'iso_8859-9:1989', 'iso-ir-100', 'iso-ir-101', 'iso-ir-109',
+    'iso-ir-110', 'iso-ir-126', 'iso-ir-127', 'iso-ir-138', 'iso-ir-144',
+    'iso-ir-148', 'iso-ir-149', 'iso-ir-157', 'iso-ir-58', 'koi', 'koi8',
+    'koi8_r', 'koi8-r', 'koi8-u', 'korean', 'ksc5601', 'ksc_5601',
+    'ks_c_5601-1987', 'ks_c_5601-1989', 'l1', 'l2', 'l3', 'l4', 'l5', 'l6',
+    'l9', 'latin1', 'latin2', 'latin3', 'latin4', 'latin5', 'latin6', 'latin9',
+    'logical', 'mac', 'macintosh', 'ms_kanji', 'replacement', 'shift_jis',
+    'shift-jis', 'sjis', 'sun_eu_greek', 'tis-620', 'unicode-1-1-utf-8',
+    'us-ascii', 'utf-16', 'utf-16be', 'utf-16le', 'utf8', 'utf-8', 'visual',
+    'windows-1250', 'windows-1251', 'windows-1252', 'windows-1253',
+    'windows-1254', 'windows-1255', 'windows-1256', 'windows-1257',
+    'windows-1258', 'windows-31j', 'windows-874', 'windows-949', 'x-cp1250',
+    'x-cp1251', 'x-cp1252', 'x-cp1253', 'x-cp1254', 'x-cp1255', 'x-cp1256',
+    'x-cp1257', 'x-cp1258', 'x-euc-jp', 'x-gbk', 'x-mac-cyrillic',
+    'x-mac-roman', 'x-mac-ukrainian', 'x-sjis', 'x-user-defined', 'x-x-big5'
+];
+
+var StreamLoader = function() {
+    this.loader = null;
+    this.listener = null;
+    this.originalListener = null;
+};
+
+StreamLoader.prototype.setOriginalListener = function(listener) {
+    this.originalListener = listener;
+};
+
+StreamLoader.prototype.init = function() {
+    try {
+        var that = this;
+        this.listener = new StreamListener();
+
+        this.listener.callback = function (loader, context, status, data) { 
+            //console.debug("here is the data", data);
+            var responseInfo = {'request': loader.channel,
+                'context': context, 
+                'statusCode': status,
+                'receivedData': data};
+            var responseHandler = processResponse.ProcessResponse(that.originalListener, responseInfo);        
+            responseHandler.processAllTypes();
+
+            that.destroy();
+        };
+
+        this.loader = Cc["@mozilla.org/network/unichar-stream-loader;1"].
+            createInstance(Ci.nsIUnicharStreamLoader);
+
+        this.loader.init(this.listener);
+    } catch (e) {
+        console.debug(e);
+    }
+};
+
+StreamLoader.prototype.destroy = function () {
+    this.loader = null;
+    this.listener = null;
+};
+
+var getRegexForContentType = function (contentType) {
+    if (/xhtml/i.test(contentType)) {
+        return /<\?[^>]*?encoding=(?:["']*)([^"'\s\?>]+)(?:["']*)/i;        
+    }
+
+    // return the regular html regexp for anything else.
+    return /<meta[^>]*?charset=(?:["']*)([^"'\s>]+)(?:["']*)/i;
+};
+
+var StreamListener = function() {};
+
+StreamListener.prototype.QueryInterface = function listener_qi(iid) {
+    if (iid.equals(Ci.nsISupports) ||
+            iid.equals(Ci.nsIUnicharStreamLoaderObserver)) {
+                return this;
+            }
+    throw Cr.NS_ERROR_NO_INTERFACE;
+};
+
+StreamListener.prototype.onStreamComplete = function onStreamComplete(
+        loader, context, status, data) {
+    this.callback(loader, context, status, data);
+};
+
+StreamListener.prototype.onDetermineCharset = function onDetermineCharset(
+        loader, context, data) {
+    var match, regex;
+    if (loader.channel.contentCharset !== undefined &&
+        loader.channel.contentCharset !== ""
+       ) {
+        return loader.channel.contentCharset;
+    } else {
+        match = getRegexForContentType(loader.channel.contentType).exec(data);
+        if (typeof match !== 'undefined' &&
+            match !== null &&
+            match.length > 0 &&
+            CHARSETS.indexOf(match[1].toLowerCase()) >= 0
+           ) {
+            loader.channel.contentCharset = match[1];
+            return match[1];
+        } else {
+            return "UTF-8";
+        }
+    }
+};
+
+exports.streamLoader = function () {
+    var l = new StreamLoader();
+    l.init();
+    return l;
+};