From c757e45762f915abc0b2f56a0f3953719677fecd Mon Sep 17 00:00:00 2001
From: Clark Cui <46164858+clark-cui@users.noreply.github.com>
Date: Wed, 11 Jan 2023 12:31:35 +0800
Subject: [PATCH] fix: back button invalid (#958)

---
 components/nav/NavTitle.vue | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/components/nav/NavTitle.vue b/components/nav/NavTitle.vue
index d001411ba..d5d376957 100644
--- a/components/nav/NavTitle.vue
+++ b/components/nav/NavTitle.vue
@@ -1,7 +1,10 @@
 <script setup lang="ts">
 const { env } = useBuildInfo()
 const router = useRouter()
-const back = ref(router.options.history.state.back)
+const back = ref<any>('')
+onMounted(() => {
+  back.value = router.options.history.state.back
+})
 router.afterEach(() => {
   back.value = router.options.history.state.back
 })
@@ -23,7 +26,7 @@ router.afterEach(() => {
         {{ $t('app_name') }} <sup text-sm italic text-secondary mt-1>{{ env === 'release' ? 'alpha' : env }}</sup>
       </div>
     </NuxtLink>
-    <div hidden xl:flex items-center me-8 mt-2 :class="{ 'pointer-events-none op40': !back }">
+    <div hidden xl:flex items-center me-8 mt-2 :class="{ 'pointer-events-none op40': !back || back === '/' }">
       <NuxtLink
         :aria-label="$t('nav.back')"
         @click="$router.go(-1)"