From 0c3c4a762d797b72c90e1423e894415b4e4e7a16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sun, 11 Oct 2020 16:27:39 +0200
Subject: [PATCH] Append form container after parsing child

issue9662
review306531003
---
 src/view/form.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/view/form.js b/src/view/form.js
index b2418241d8..afda9485aa 100644
--- a/src/view/form.js
+++ b/src/view/form.js
@@ -31,11 +31,12 @@ function eval_pyson(value){
             var container = new Sao.View.Form.Container(
                 Number(node.getAttribute('col') || 4));
             this.view.containers.push(container);
-            this.view.el.append(container.el);
             this.parse_child(node, container);
             if (this._containers.length > 0) {
                 throw 'AssertionError';
             }
+            // Append after parsing child to minimize browser reflow
+            this.view.el.append(container.el);
         },
         parse_child: function(node, container) {
             if (container) {