diff --git a/addons/hw_escpos/controllers/main.py b/addons/hw_escpos/controllers/main.py
index 16df99a5f77..b1ba85b2dba 100644
--- a/addons/hw_escpos/controllers/main.py
+++ b/addons/hw_escpos/controllers/main.py
@@ -263,12 +263,12 @@ hw_proxy.drivers['escpos'] = driver
         
 class EscposProxy(hw_proxy.Proxy):
     
-    @http.route('/hw_proxy/open_cashbox', type='json', auth='none')
+    @http.route('/hw_proxy/open_cashbox', type='json', auth='none', cors='*')
     def open_cashbox(self):
         _logger.info('ESC/POS: OPEN CASHBOX') 
         driver.push_task('cashbox')
         
-    @http.route('/hw_proxy/print_receipt', type='json', auth='none')
+    @http.route('/hw_proxy/print_receipt', type='json', auth='none', cors='*')
     def print_receipt(self, receipt):
         _logger.info('ESC/POS: PRINT RECEIPT') 
         driver.push_task('receipt',receipt)
diff --git a/addons/hw_proxy/controllers/main.py b/addons/hw_proxy/controllers/main.py
index adb59a072b3..5293abd1f25 100644
--- a/addons/hw_proxy/controllers/main.py
+++ b/addons/hw_proxy/controllers/main.py
@@ -33,20 +33,15 @@ class Proxy(http.Controller):
             statuses[driver] = drivers[driver].get_status()
         return statuses
 
-    @http.route('/hw_proxy/hello', type='http', auth='none')
+    @http.route('/hw_proxy/hello', type='http', auth='none', cors='*')
     def hello(self):
-        return request.make_response('ping', {
-            'Cache-Control': 'no-cache', 
-            'Content-Type': 'text/html; charset=utf-8',
-            'Access-Control-Allow-Origin':  '*',
-            'Access-Control-Allow-Methods': 'GET',
-            })
+        return "ping"
 
-    @http.route('/hw_proxy/handshake', type='json', auth='none')
+    @http.route('/hw_proxy/handshake', type='json', auth='none', cors='*')
     def handshake(self):
         return True
 
-    @http.route('/hw_proxy/status', type='http', auth='none')
+    @http.route('/hw_proxy/status', type='http', auth='none', cors='*')
     def status_http(self):
         resp = '<html>\n<body>\n<h1>Hardware Proxy Status</h1>\n'
         statuses = self.get_status()
@@ -75,39 +70,39 @@ class Proxy(http.Controller):
             'Access-Control-Allow-Methods': 'GET',
             })
 
-    @http.route('/hw_proxy/status_json', type='json', auth='none')
+    @http.route('/hw_proxy/status_json', type='json', auth='none', cors='*')
     def status_json(self):
         return self.get_status()
 
-    @http.route('/hw_proxy/scan_item_success', type='json', auth='none')
+    @http.route('/hw_proxy/scan_item_success', type='json', auth='none', cors='*')
     def scan_item_success(self, ean):
         """
         A product has been scanned with success
         """
         print 'scan_item_success: ' + str(ean)
 
-    @http.route('/hw_proxy/scan_item_error_unrecognized', type='json', auth='none')
+    @http.route('/hw_proxy/scan_item_error_unrecognized', type='json', auth='none', cors='*')
     def scan_item_error_unrecognized(self, ean):
         """
         A product has been scanned without success
         """
         print 'scan_item_error_unrecognized: ' + str(ean)
 
-    @http.route('/hw_proxy/help_needed', type='json', auth='none')
+    @http.route('/hw_proxy/help_needed', type='json', auth='none', cors='*')
     def help_needed(self):
         """
         The user wants an help (ex: light is on)
         """
         print "help_needed"
 
-    @http.route('/hw_proxy/help_canceled', type='json', auth='none')
+    @http.route('/hw_proxy/help_canceled', type='json', auth='none', cors='*')
     def help_canceled(self):
         """
         The user stops the help request
         """
         print "help_canceled"
 
-    @http.route('/hw_proxy/weighting_start', type='json', auth='none')
+    @http.route('/hw_proxy/weighting_start', type='json', auth='none', cors='*')
     def weighting_start(self):
         if self.scale == 'closed':
             print "Opening (Fake) Connection to Scale..."
@@ -118,7 +113,7 @@ class Proxy(http.Controller):
         else:
             print "WARNING: Scale already Connected !!!"
 
-    @http.route('/hw_proxy/weighting_read_kg', type='json', auth='none')
+    @http.route('/hw_proxy/weighting_read_kg', type='json', auth='none', cors='*')
     def weighting_read_kg(self):
         if self.scale == 'open':
             print "Reading Scale..."
@@ -130,7 +125,7 @@ class Proxy(http.Controller):
             print "WARNING: Reading closed scale !!!"
             return 0.0
 
-    @http.route('/hw_proxy/weighting_end', type='json', auth='none')
+    @http.route('/hw_proxy/weighting_end', type='json', auth='none', cors='*')
     def weighting_end(self):
         if self.scale == 'open':
             print "Closing Connection to Scale ..."
@@ -141,7 +136,7 @@ class Proxy(http.Controller):
         else:
             print "WARNING: Scale already Closed !!!"
 
-    @http.route('/hw_proxy/payment_request', type='json', auth='none')
+    @http.route('/hw_proxy/payment_request', type='json', auth='none', cors='*')
     def payment_request(self, price):
         """
         The PoS will activate the method payment 
@@ -149,55 +144,55 @@ class Proxy(http.Controller):
         print "payment_request: price:"+str(price)
         return 'ok'
 
-    @http.route('/hw_proxy/payment_status', type='json', auth='none')
+    @http.route('/hw_proxy/payment_status', type='json', auth='none', cors='*')
     def payment_status(self):
         print "payment_status"
         return { 'status':'waiting' } 
 
-    @http.route('/hw_proxy/payment_cancel', type='json', auth='none')
+    @http.route('/hw_proxy/payment_cancel', type='json', auth='none', cors='*')
     def payment_cancel(self):
         print "payment_cancel"
 
-    @http.route('/hw_proxy/transaction_start', type='json', auth='none')
+    @http.route('/hw_proxy/transaction_start', type='json', auth='none', cors='*')
     def transaction_start(self):
         print 'transaction_start'
 
-    @http.route('/hw_proxy/transaction_end', type='json', auth='none')
+    @http.route('/hw_proxy/transaction_end', type='json', auth='none', cors='*')
     def transaction_end(self):
         print 'transaction_end'
 
-    @http.route('/hw_proxy/cashier_mode_activated', type='json', auth='none')
+    @http.route('/hw_proxy/cashier_mode_activated', type='json', auth='none', cors='*')
     def cashier_mode_activated(self):
         print 'cashier_mode_activated'
 
-    @http.route('/hw_proxy/cashier_mode_deactivated', type='json', auth='none')
+    @http.route('/hw_proxy/cashier_mode_deactivated', type='json', auth='none', cors='*')
     def cashier_mode_deactivated(self):
         print 'cashier_mode_deactivated'
 
-    @http.route('/hw_proxy/open_cashbox', type='json', auth='none')
+    @http.route('/hw_proxy/open_cashbox', type='json', auth='none', cors='*')
     def open_cashbox(self):
         print 'open_cashbox'
 
-    @http.route('/hw_proxy/print_receipt', type='json', auth='none')
+    @http.route('/hw_proxy/print_receipt', type='json', auth='none', cors='*')
     def print_receipt(self, receipt):
         print 'print_receipt' + str(receipt)
 
-    @http.route('/hw_proxy/is_scanner_connected', type='json', auth='none')
+    @http.route('/hw_proxy/is_scanner_connected', type='json', auth='none', cors='*')
     def print_receipt(self, receipt):
         print 'is_scanner_connected?' 
         return False
 
-    @http.route('/hw_proxy/scanner', type='json', auth='none')
+    @http.route('/hw_proxy/scanner', type='json', auth='none', cors='*')
     def print_receipt(self, receipt):
         print 'scanner' 
         time.sleep(10)
         return ''
 
-    @http.route('/hw_proxy/log', type='json', auth='none')
+    @http.route('/hw_proxy/log', type='json', auth='none', cors='*')
     def log(self, arguments):
         _logger.info(' '.join(str(v) for v in arguments))
 
-    @http.route('/hw_proxy/print_pdf_invoice', type='json', auth='none')
+    @http.route('/hw_proxy/print_pdf_invoice', type='json', auth='none', cors='*')
     def print_pdf_invoice(self, pdfinvoice):
         print 'print_pdf_invoice' + str(pdfinvoice)
 
diff --git a/addons/hw_scanner/controllers/main.py b/addons/hw_scanner/controllers/main.py
index 664606954c3..105856a3e28 100644
--- a/addons/hw_scanner/controllers/main.py
+++ b/addons/hw_scanner/controllers/main.py
@@ -124,7 +124,7 @@ class Scanner(Thread):
             self.set_status('error',str(e))
             return None
 
-    @http.route('/hw_proxy/Vis_scanner_connected', type='json', auth='none')
+    @http.route('/hw_proxy/Vis_scanner_connected', type='json', auth='none', cors='*')
     def is_scanner_connected(self):
         return self.get_device() != None
     
@@ -207,7 +207,7 @@ s = Scanner()
 hw_proxy.drivers['scanner'] = s
 
 class ScannerDriver(hw_proxy.Proxy):
-    @http.route('/hw_proxy/scanner', type='json', auth='none')
+    @http.route('/hw_proxy/scanner', type='json', auth='none', cors='*')
     def scanner(self):
         if not s.isAlive():
             s.start()
diff --git a/addons/point_of_sale/static/src/js/devices.js b/addons/point_of_sale/static/src/js/devices.js
index 57b23afd49f..bb13503d903 100644
--- a/addons/point_of_sale/static/src/js/devices.js
+++ b/addons/point_of_sale/static/src/js/devices.js
@@ -102,6 +102,8 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
             };    
             this.custom_payment_status = this.default_payment_status;
 
+            this.receipt_queue = [];
+
             this.notifications = {};
             this.bypass_proxy = false;
 
@@ -113,6 +115,13 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
 
             this.set_connection_status('disconnected');
 
+            this.on('change:status',this,function(eh,status){
+                status = status.newValue;
+                if(status.status === 'connected'){
+                    self.print_receipt();
+                }
+            });
+
             window.hw_proxy = this;
         },
         set_connection_status: function(status,drivers){
@@ -502,7 +511,23 @@ function openerp_pos_devices(instance,module){ //module is instance.point_of_sal
          *    }
          */
         print_receipt: function(receipt){
-            return this.message('print_receipt',{receipt: receipt});
+            var self = this;
+            if(receipt){
+                this.receipt_queue.push(receipt);
+            }
+            var aborted = false;
+            function send_printing_job(){
+                if (self.receipt_queue.length > 0){
+                    var r = self.receipt_queue.shift();
+                    self.message('print_receipt',{ receipt: r },{ timeout: 5000 })
+                        .then(function(){
+                            send_printing_job();
+                        },function(){
+                            self.receipt_queue.unshift(r)
+                        });
+                }
+            }
+            send_printing_job();
         },
 
         // asks the proxy to log some information, as with the debug.log you can provide several arguments.