From 939a2079b6f618b8bef7662a0e94ed400fbf5599 Mon Sep 17 00:00:00 2001
From: Leilei332 <LeiYiXia29@outlook.com>
Date: Mon, 27 Jan 2025 19:15:09 +0800
Subject: [PATCH] Set "text/plain" data only when it exists

---
 core/modules/utils/dom/dom.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/modules/utils/dom/dom.js b/core/modules/utils/dom/dom.js
index cb38e1cc88b..5f33bbeea99 100644
--- a/core/modules/utils/dom/dom.js
+++ b/core/modules/utils/dom/dom.js
@@ -289,7 +289,9 @@ exports.copyToClipboard = function(text,options,type) {
 	textArea.setSelectionRange(0,text.length);
 	textArea.addEventListener("copy",function(event) {
 		event.preventDefault();
-		event.clipboardData.setData("text/plain",options.plainText);
+		if (options.plainText) {
+			event.clipboardData.setData("text/plain",options.plainText);
+		}
 		event.clipboardData.setData(type,text);
 	});
 	var succeeded = false;