From 96cc89a27dbd35efb3e3373fb87c3964edd41b71 Mon Sep 17 00:00:00 2001
From: yuyuyzl <yuzhongliang221@gmail.com>
Date: Tue, 6 Sep 2022 10:36:07 +0800
Subject: [PATCH] fix: cleanup iframe first to prevent memory leaks, see #1609

---
 src/dom/document-cloner.ts | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/dom/document-cloner.ts b/src/dom/document-cloner.ts
index 7f4864a..58a9d4d 100644
--- a/src/dom/document-cloner.ts
+++ b/src/dom/document-cloner.ts
@@ -480,15 +480,15 @@ export class DocumentCloner {
 
     static destroy(container: HTMLIFrameElement): boolean {
         // cleanup iframe first to prevent memory leaks, see #1609
-        try{
-            const iframe=container.contentWindow;
-            container.src='about:blank';
-            if(iframe) {
+        try {
+            const iframe = container.contentWindow;
+            container.src = 'about:blank';
+            if (iframe) {
                 iframe.document.write('');
                 iframe.document.clear();
                 iframe.close();
             }
-        }catch {}
+        } catch {}
         if (container.parentNode) {
             container.parentNode.removeChild(container);
             return true;