diff --git a/lib/Connectors/PeerJsConnector.coffee b/lib/Connectors/PeerJsConnector.coffee
index 373d8bab..4c91694e 100644
--- a/lib/Connectors/PeerJsConnector.coffee
+++ b/lib/Connectors/PeerJsConnector.coffee
@@ -44,10 +44,10 @@ createPeerJsConnector = ()->
         @addConnection conn
 
       sync_every_collaborator = ()=>
-          for conn_id, conn of @connections
-            conn.send
-              sync_state_vector: @HB.getOperationCounter()
-      setInterval sync_every_collaborator, 8000
+        for conn_id, conn of @connections
+          conn.send
+            sync_state_vector: @HB.getOperationCounter()
+      setInterval sync_every_collaborator, 4000
 
       send_ = (o)=>
         if o.uid.creator is @HB.getUserId() and (typeof o.uid.op_number isnt "string")
@@ -122,7 +122,7 @@ createPeerJsConnector = ()->
               initialized: false
             initialized_him = true
         else
-          throw new Error "Can't parse this operation"
+          throw new Error "Can't parse this operation: #{data}"
 
       sendStateVector = ()=>
         conn.send
diff --git a/test/XmlYatta_test_browser.coffee b/test/XmlYatta_test_browser.coffee
index 3f057b44..3584115e 100644
--- a/test/XmlYatta_test_browser.coffee
+++ b/test/XmlYatta_test_browser.coffee
@@ -45,5 +45,11 @@ describe "XmlFramework", ->
     dom_ = @test_user.val(true)
     expect(dom_ isnt dom).to.be.true
     expect(dom_.outerHTML).to.equal(dom.outerHTML)
-    console.log "dtrn"
+
+  it "can transform to a real Dom element", ->
+    dom = $("#test_dom")[0]
+    @test_user.val(dom)
+    newdom = $("<p>dtrn</p>")[0]
+    dom.insertBefore(newdom)
+    dom_ = @test_user.val(true)