diff --git a/addons/point_of_sale/static/src/js/Chrome.js b/addons/point_of_sale/static/src/js/Chrome.js
index d0d7039d4f3..36a67711cf9 100644
--- a/addons/point_of_sale/static/src/js/Chrome.js
+++ b/addons/point_of_sale/static/src/js/Chrome.js
@@ -206,20 +206,20 @@ odoo.define('point_of_sale.Chrome', function(require) {
         }
 
         connect_to_proxy() {
-            return new Promise(function (resolve, reject) {
+            return new Promise((resolve, reject) => {
                 this.env.barcode_reader.disconnect_from_proxy();
                 this.state.loadingSkipButtonIsShown = true;
                 this.env.proxy.autoconnect({
                     force_ip: this.env.pos.config.proxy_ip || undefined,
                     progress: function(prog){},
                 }).then(
-                    function () {
+                    () => {
                         if (this.env.pos.config.iface_scan_via_proxy) {
                             this.env.barcode_reader.connect_to_proxy();
                         }
                         resolve();
                     },
-                    function (statusText, url) {
+                    (statusText, url) => {
                         // this should reject so that it can be captured when we wait for pos.ready
                         // in the chrome component.
                         // then, if it got really rejected, we can show the error.
diff --git a/addons/point_of_sale/static/src/js/devices.js b/addons/point_of_sale/static/src/js/devices.js
index 1613d297474..a285af5d2b4 100644
--- a/addons/point_of_sale/static/src/js/devices.js
+++ b/addons/point_of_sale/static/src/js/devices.js
@@ -447,7 +447,7 @@ var ProxyDevice  = core.Class.extend(mixins.PropertiesMixin,{
     },
 
     update_customer_facing_display: function(html) {
-        if (this.posbox_supports_display) {
+        if (this.posbox_supports_display && this.get('status').status == 'connected') {
             return this.message('customer_facing_display',
                 { html: html },
                 { timeout: 5000 });