From 8be0cd8b6a2a4183c11652ce7b0bf9f9a63c9fc9 Mon Sep 17 00:00:00 2001
From: Alec Larson <1925840+aleclarson@users.noreply.github.com>
Date: Tue, 7 May 2024 18:37:47 -0400
Subject: [PATCH] fix: ensure transformIndexHtml url is relative to config.root

---
 packages/vite/src/node/server/middlewares/indexHtml.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/vite/src/node/server/middlewares/indexHtml.ts b/packages/vite/src/node/server/middlewares/indexHtml.ts
index b5893dd072b972..88ec99edecdbcd 100644
--- a/packages/vite/src/node/server/middlewares/indexHtml.ts
+++ b/packages/vite/src/node/server/middlewares/indexHtml.ts
@@ -435,7 +435,14 @@ export function indexHtmlMiddleware(
         try {
           let html = await fsp.readFile(filePath, 'utf-8')
           if (isDev) {
-            html = await server.transformIndexHtml(url, html, req.originalUrl)
+            const resolvedUrl =
+              '/' + path.relative(server.config.root, filePath)
+
+            html = await server.transformIndexHtml(
+              resolvedUrl,
+              html,
+              req.originalUrl,
+            )
           }
           return send(req, res, html, 'html', { headers })
         } catch (e) {