From 7b823134c8efee747a4a9d901ce9b43fcc1bfc62 Mon Sep 17 00:00:00 2001
From: ttang <ttang@ttang-MBP-2021.lan>
Date: Mon, 26 Jun 2023 13:32:36 +0800
Subject: [PATCH] feat: backBtn valuable check

---
 packages/client/scan/src/components/Header.tsx | 2 +-
 packages/client/scan/src/components/Nav.tsx    | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/packages/client/scan/src/components/Header.tsx b/packages/client/scan/src/components/Header.tsx
index bf623d3a..c6bd9d70 100644
--- a/packages/client/scan/src/components/Header.tsx
+++ b/packages/client/scan/src/components/Header.tsx
@@ -48,7 +48,7 @@ export default function Header() {
   return (
     <Box>
       <div>
-        {(showBack && (
+        {(showBack && window.history.length > 1 && (
           <BackBtn
             backAction={() => {
               if (location.pathname.startsWith('/models/modelview')) {
diff --git a/packages/client/scan/src/components/Nav.tsx b/packages/client/scan/src/components/Nav.tsx
index 9a6f2744..dcc4a4f9 100644
--- a/packages/client/scan/src/components/Nav.tsx
+++ b/packages/client/scan/src/components/Nav.tsx
@@ -3,7 +3,6 @@ import styled from 'styled-components'
 import GitHubButton from 'react-github-btn'
 
 import Logo from './Logo'
-import LoginButton from './LoginButton'
 import { useCeramicCtx } from '../context/CeramicCtx'
 
 export default function Nav() {