From ee89ae602b5a38721054f619aa04743156699b08 Mon Sep 17 00:00:00 2001
From: Aissa Benfodda <68044105+Rygaa@users.noreply.github.com>
Date: Wed, 13 May 2026 05:15:43 -0400
Subject: [PATCH] Server: Fixes #15395: Static asset resolution fails on
 Windows due to backslash path separators (#15396)

---
 packages/server/src/routes/default.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/server/src/routes/default.ts b/packages/server/src/routes/default.ts
index b662ef4e5d..cbccbfa49e 100644
--- a/packages/server/src/routes/default.ts
+++ b/packages/server/src/routes/default.ts
@@ -9,6 +9,7 @@ import { localFileFromUrl } from '../utils/joplinUtils';
 import { homeUrl, loginUrl } from '../utils/urlUtils';
 import * as mime from '@joplin/lib/mime-utils';
 import { hasOwnProperty } from '@joplin/utils/object';
+import { toForwardSlashes } from '@joplin/utils/path';
 
 const publicDir = `${dirname(dirname(__dirname))}/public`;
 
@@ -34,7 +35,7 @@ async function findLocalFile(path: string): Promise<string> {
 	const appFilePath = await localFileFromUrl(path);
 	if (appFilePath) return appFilePath;
 
-	let localPath = normalize(path);
+	let localPath = toForwardSlashes(normalize(path));
 	if (localPath.indexOf('..') >= 0) throw new ErrorNotFound(`Cannot resolve path: ${path}`);
 
 	if (hasOwnProperty(pathToFileMap, path)) return pathToFileMap[path];