From b1c8142181e2c374702c2782299cf447a71798c8 Mon Sep 17 00:00:00 2001
From: Matt Westcott <matt@west.co.tt>
Date: Mon, 19 Apr 2021 18:15:40 +0100
Subject: [PATCH] Delay focus on draftail widget for 50ms

This avoids an IndexSizeError on IE11 https://github.com/wagtail/wagtail/pull/6968#issuecomment-822591161 , apparently due to the focus triggering a field update before it has been fully initialised.
---
 client/src/entrypoints/admin/telepath/widgets.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/client/src/entrypoints/admin/telepath/widgets.js b/client/src/entrypoints/admin/telepath/widgets.js
index 9bb8f6b698..9295764340 100644
--- a/client/src/entrypoints/admin/telepath/widgets.js
+++ b/client/src/entrypoints/admin/telepath/widgets.js
@@ -155,7 +155,9 @@ class DraftailRichTextArea {
                 return result;
             },
             focus: () => {
-                input.draftailEditor.focus();
+                setTimeout(() => {
+                    input.draftailEditor.focus();
+                }, 50);
             },
         };
     }