--- a/dom/workers/test/test_transferable.html
+++ b/dom/workers/test/test_transferable.html
@@ -17,35 +17,30 @@ Tests of DOM Worker transferable objects
 <div id="content" style="display: none">
 
 </div>
 <pre id="test">
 <script class="testbody" language="javascript">
 
   function test1(sizes) {
     if (!sizes.length) {
-      runTests();
+      SimpleTest.finish();
       return;
     }
 
     var size = sizes.pop();
 
     var worker = new Worker("transferable_worker.js");
     worker.onmessage = function(event) {
       ok(event.data.status, event.data.event);
       if (!event.data.status) {
-        runTests();
+        SimpleTest.finish();
         return;
       }
 
-      if ("notEmpty" in event.data && "byteLength" in event.data.notEmpty) {
-        ok(event.data.notEmpty.byteLength != 0,
-           "P: NotEmpty object received: " + event.data.notEmpty.byteLength);
-      }
-
       if (!event.data.last)
         return;
 
       test1(sizes);
     }
     worker.onerror = function(event) {
       ok(false, "No errors!");
     }
@@ -60,64 +55,21 @@ Tests of DOM Worker transferable objects
     try {
       ab = new ArrayBuffer(size);
       worker.postMessage(42,[ab, ab]);
       ok(false, "P: PostMessage - Exception for duplicate");
     } catch(e) {
       ok(true, "P: PostMessage - Exception for duplicate");
     }
 
-    var ab = new ArrayBuffer(size);
+    ab = new ArrayBuffer(size);
     ok(ab.byteLength == size, "P: The size is: " + size + " == " + ab.byteLength);
     worker.postMessage({ data: 0, timeout: 0, ab: ab, cb: ab, size: size }, [ab]);
     ok(ab.byteLength == 0, "P: PostMessage - The size is: 0 == " + ab.byteLength)
   }
 
-  function test2() {
-    var worker = new Worker("transferable_worker.js");
-    worker.onmessage = function(event) {
-      ok(event.data.status, event.data.event);
-      if (!event.data.status) {
-        runTests();
-        return;
-      }
-
-      if ("notEmpty" in event.data && "byteLength" in event.data.notEmpty) {
-        ok(event.data.notEmpty.byteLength != 0,
-           "P: NotEmpty object received: " + event.data.notEmpty.byteLength);
-      }
-
-      if (event.data.last) {
-        runTests();
-      }
-    }
-    worker.onerror = function(event) {
-      ok(false, "No errors!");
-    }
-
-    var f = new Float32Array([0,1,2,3]);
-    ok(f.byteLength != 0, "P: The size is: " + f.byteLength + " is not 0");
-    worker.postMessage({ event: "P: postMessage with Float32Array", status: true,
-                         size: 4, notEmpty: f, bc: [ f, f, { dd: f } ] }, [f.buffer]);
-    ok(f.byteLength == 0, "P: The size is: " + f.byteLength + " is 0");
-  }
-
-  var tests = [
-    function() { test1([1024 * 1024 * 32, 128, 4]); },
-    test2
-  ];
-  function runTests() {
-    if (!tests.length) {
-      SimpleTest.finish();
-      return;
-    }
-
-    var test = tests.shift();
-    test();
-  }
-
+  test1([1024 * 1024 * 32, 128, 4]);
   SimpleTest.waitForExplicitFinish();
-  runTests();
 
 </script>
 </pre>
 </body>
 </html>

--- a/dom/workers/test/transferable_worker.js
+++ b/dom/workers/test/transferable_worker.js
@@ -1,23 +1,33 @@
 /**
  * Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
 onmessage = function(event) {
-  if ("notEmpty" in event.data && "byteLength" in event.data.notEmpty) {
-    postMessage({ event: "W: NotEmpty object received: " + event.data.notEmpty.byteLength,
-                  status: event.data.notEmpty.byteLength != 0, last: false });
-  }
+  if (event.data.data == 0) {
+    ab = new ArrayBuffer(event.data.size);
+    postMessage({ event: "W: The size is: " + event.data.size + " == " + ab.byteLength,
+                  status: ab.byteLength == event.data.size, last: false });
 
-  var ab = new ArrayBuffer(event.data.size);
-  postMessage({ event: "W: The size is: " + event.data.size + " == " + ab.byteLength,
-                status: ab.byteLength == event.data.size, last: false });
+    postMessage({ event: "W: postMessage with arrayBuffer", status: true,
+                  ab: ab, bc: [ ab, ab, { dd: ab } ] }, [ab]);
+
+    postMessage({ event: "W: The size is: 0 == " + ab.byteLength,
+                  status: ab.byteLength == 0, last: false });
+
+    postMessage({ event: "last one!", status: true, last: true });
 
-  postMessage({ event: "W: postMessage with arrayBuffer", status: true,
-                notEmpty: ab, ab: ab, bc: [ ab, ab, { dd: ab } ] }, [ab]);
+  } else {
+    var worker = new Worker('sync_worker.js');
+    worker.onmessage = function(event) {
+      postMessage(event.data);
+    }
+    worker.onsyncmessage = function(event) {
+      var v = postSyncMessage(event.data, null, 500);
+      event.reply(v);
+    }
 
-  postMessage({ event: "W: The size is: 0 == " + ab.byteLength,
-                status: ab.byteLength == 0, last: false });
-
-  postMessage({ event: "W: last one!", status: true, last: true });
+    --event.data.data;
+    worker.postMessage(event.data);
+  }
 }