From 765882eada7449ebb8d0f3e90ba3ad087c09b95b Mon Sep 17 00:00:00 2001
From: zqran <uuxnet@gmail.com>
Date: Tue, 13 Sep 2022 04:38:39 +0800
Subject: [PATCH] [Beta] Fix the blank page displayed when the page navigate
 (#5045)

---
 beta/src/components/SocialBanner.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/beta/src/components/SocialBanner.tsx b/beta/src/components/SocialBanner.tsx
index c79d4289..1ea63d2a 100644
--- a/beta/src/components/SocialBanner.tsx
+++ b/beta/src/components/SocialBanner.tsx
@@ -18,7 +18,7 @@ export default function SocialBanner() {
       if (y === 0) {
         // We're trying to reset scroll.
         // If we already scrolled past the banner, consider it as y = 0.
-        const bannerHeight = ref.current!.offsetHeight; // Could be zero (e.g. mobile)
+        const bannerHeight = ref.current?.offsetHeight ?? 0; // Could be zero (e.g. mobile)
         y = Math.min(window.scrollY, bannerHeight);
       }
       return realScrollTo(x, y);