From 53bb961a925cbafe53730450c5b069e255b54e03 Mon Sep 17 00:00:00 2001
From: hangzou <1102639563@qq.com>
Date: Fri, 2 Jul 2021 17:19:31 +0800
Subject: [PATCH] fix: skip external URLs in `withBase` (#328)

---
 src/client/app/utils.ts | 6 ++++--
 src/shared/shared.ts    | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/client/app/utils.ts b/src/client/app/utils.ts
index f6438cc1..4879f7ab 100644
--- a/src/client/app/utils.ts
+++ b/src/client/app/utils.ts
@@ -1,5 +1,5 @@
 import { siteDataRef } from './data'
-import { inBrowser } from '../shared'
+import { inBrowser, EXTERNAL_URL_RE } from '../shared'
 
 export { inBrowser }
 
@@ -11,7 +11,9 @@ export function joinPath(base: string, path: string): string {
 }
 
 export function withBase(path: string) {
-  return joinPath(siteDataRef.value.base, path)
+  return EXTERNAL_URL_RE.test(path)
+    ? path
+    : joinPath(siteDataRef.value.base, path)
 }
 
 /**
diff --git a/src/shared/shared.ts b/src/shared/shared.ts
index c7ce172c..302fa312 100644
--- a/src/shared/shared.ts
+++ b/src/shared/shared.ts
@@ -8,6 +8,8 @@ export type {
   Header
 } from '../../types/shared'
 
+export const EXTERNAL_URL_RE = /^https?:/i
+
 export const inBrowser = typeof window !== 'undefined'
 
 function findMatchRoot(route: string, roots: string[]) {