From 3ee577cc725c96042b842949a0441c390e7c9f33 Mon Sep 17 00:00:00 2001
From: Vishnutheep B <vishnutheep@gmail.com>
Date: Tue, 12 Aug 2025 11:19:13 +0530
Subject: [PATCH] =?UTF-8?q?Backport=20PR=20#7698:=20Fix=20open=20file=20wi?=
 =?UTF-8?q?th=20=E2=80=9C#=E2=80=9D=20in=20the=20filename?=
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---
 packages/application/src/pathopener.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/application/src/pathopener.ts b/packages/application/src/pathopener.ts
index 5dd9f2c72c..bf54c3d53f 100644
--- a/packages/application/src/pathopener.ts
+++ b/packages/application/src/pathopener.ts
@@ -15,7 +15,7 @@ class DefaultNotebookPathOpener implements INotebookPathOpener {
   open(options: INotebookPathOpener.IOpenOptions): WindowProxy | null {
     const { prefix, path, searchParams, target, features } = options;
     const url = new URL(
-      URLExt.join(prefix, path ?? ''),
+      URLExt.join(prefix, URLExt.encodeParts(path ?? '')),
       window.location.origin
     );
     if (searchParams) {