From 07a6bbe2b005047571e4106bb262d5f3bcad66d2 Mon Sep 17 00:00:00 2001
From: Pooya Parsa <pyapar@gmail.com>
Date: Thu, 10 Dec 2020 11:40:20 +0100
Subject: [PATCH] chore: fix router base handling with dev-middleware (closes
 #8440)

[release]
---
 packages/webpack/src/builder.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/webpack/src/builder.js b/packages/webpack/src/builder.js
index c0404dfd69..c588b7d80a 100644
--- a/packages/webpack/src/builder.js
+++ b/packages/webpack/src/builder.js
@@ -207,7 +207,10 @@ export class WebpackBundler {
     const name = isModernRequest(req, this.buildContext.options.modern) ? 'modern' : 'client'
 
     if (this.devMiddleware && this.devMiddleware[name]) {
+      const { url } = req
+      req.url = req.originalUrl || req.url
       await this.devMiddleware[name](req, res)
+      req.url = url
     }
 
     if (this.hotMiddleware && this.hotMiddleware[name]) {