diff --git a/addons/point_of_sale/tools/posbox/overwrite_after_init/home/pi/odoo/odoo/http.py.iotpatch b/addons/point_of_sale/tools/posbox/overwrite_after_init/home/pi/odoo/odoo/http.py.iotpatch
index 7f9cad6b1a8..7bcfb3e9578 100644
--- a/addons/point_of_sale/tools/posbox/overwrite_after_init/home/pi/odoo/odoo/http.py.iotpatch
+++ b/addons/point_of_sale/tools/posbox/overwrite_after_init/home/pi/odoo/odoo/http.py.iotpatch
@@ -1,6 +1,15 @@
---- http_old.py	2019-11-07 15:01:37.190918774 +0100
-+++ http_new.py	2019-11-07 15:02:16.406711394 +0100
-@@ -1496,7 +1496,7 @@
+--- http_old.py	2020-02-27 10:56:47.236000000 +0100
++++ http_new.py	2020-02-27 10:58:30.737536611 +0100
+@@ -763,7 +763,7 @@
+         if request.httprequest.method == 'OPTIONS' and request.endpoint and request.endpoint.routing.get('cors'):
+             headers = {
+                 'Access-Control-Max-Age': 60 * 60 * 24,
+-                'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept'
++                'Access-Control-Allow-Headers': 'Origin, X-Requested-With, Content-Type, Accept, X-Debug-Mode'
+             }
+             return Response(status=200, headers=headers)
+ 
+@@ -1497,7 +1497,7 @@
      """
      httprequest = httprequest or request.httprequest