From a0903fbf9b45e35616fce436d15ac27d2f0f6439 Mon Sep 17 00:00:00 2001
From: hantatsang <hantatsang@gmail.com>
Date: Sun, 31 Jan 2021 11:43:59 +1100
Subject: [PATCH] terminal.open: support webcomponent in dom node check

---
 src/browser/Terminal.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/browser/Terminal.ts b/src/browser/Terminal.ts
index 06ac57f31c..b0964c2195 100644
--- a/src/browser/Terminal.ts
+++ b/src/browser/Terminal.ts
@@ -386,7 +386,7 @@ export class Terminal extends CoreTerminal implements ITerminal {
       throw new Error('Terminal requires a parent element.');
     }
 
-    if (!document.body.contains(parent)) {
+    if (!parent.isConnected) {
       this._logService.debug('Terminal.open was called on an element that was not attached to the DOM');
     }