diff --git a/addons/website/static/src/js/widgets/ace.js b/addons/website/static/src/js/widgets/ace.js
index f4fe74ddd38..449549264a8 100644
--- a/addons/website/static/src/js/widgets/ace.js
+++ b/addons/website/static/src/js/widgets/ace.js
@@ -40,23 +40,24 @@ var WebsiteAceEditor = AceEditor.extend({
         return this._super.apply(this, arguments).then((function () {
             var defs = [];
             if (this.currentType === 'xml') {
+                // When saving a view, the view ID might change. Thus, the
+                // active ID in the URL will be incorrect. After the save
+                // reload, that URL ID won't be found and JS will crash.
+                // We need to find the new ID (either because the view became
+                // specific or because its parent was edited too and the view
+                // got copy/unlink).
                 var selectedView = _.findWhere(this.views, {id: this._getSelectedResource()});
-                if (!selectedView.website_id[0]) {
-                    // When saving a generic view, the view will be COW'd and
-                    // replace by the specific view after the reload. Thus the id in
-                    // URL won't exist anymore. We need to find the specific ID.
-                    var context = weContext.get();
-                    defs.push(this._rpc({
-                        model: 'ir.ui.view',
-                        method: 'search_read',
-                        fields: ['id'],
-                        domain: [['key', '=', selectedView.key], ['website_id', '=', context.website_id]],
-                    }).then((function (view) {
-                        if (view[0]) {
-                            this._updateHash(view[0].id);
-                        }
-                    }).bind(this)));
-                }
+                var context = weContext.get();
+                defs.push(this._rpc({
+                    model: 'ir.ui.view',
+                    method: 'search_read',
+                    fields: ['id'],
+                    domain: [['key', '=', selectedView.key], ['website_id', '=', context.website_id]],
+                }).then((function (view) {
+                    if (view[0]) {
+                        this._updateHash(view[0].id);
+                    }
+                }).bind(this)));
             }
             return $.when.apply($, defs).then((function () {
                 window.location.reload();