diff -r 000000000000 -r 6474c204b198 browser/components/translation/cld2/post.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/translation/cld2/post.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+addOnPreMain(function() {
+
+  onmessage = function(aMsg){
+
+    // Convert the string to an array of UTF8 bytes.
+    var encoder = new TextEncoder();
+    encoder['encoding'] = "utf-8";
+    var utf8Array = encoder['encode'](aMsg.data);
+
+    // Copy the UTF8 byte array to the heap.
+    var strLength = utf8Array.length;
+    var ptr = Module['_malloc'](strLength + 1);
+    var heap = Module['HEAPU8'];
+    new Uint8Array(heap.buffer, ptr, strLength).set(utf8Array);
+    // Add a \0 at the end of the C string.
+    heap[ptr + strLength] = 0;
+
+    var lang = Pointer_stringify(_detectLangCode(ptr));
+    var confident = !!Module['ccall']("lastResultReliable", "number");
+    postMessage({'language': lang,
+                 'confident': confident});
+
+    Module['_free'](ptr);
+  };
+
+  postMessage("ready");
+
+});