From 4d33e1c0d4fc1efe63e9c2da63d3a4a6b0777fae Mon Sep 17 00:00:00 2001
From: Yusuke Wada <yusuke@kamawada.com>
Date: Mon, 22 Jul 2024 11:35:04 +0900
Subject: [PATCH] Revert "fix(helper/adapter): don't check `navigator` is
 `undefined` (#3171)" (#3173)

This reverts commit a285c4b3b4bc7a9c162ec24669c9890b16f91f63.
---
 src/helper/adapter/index.ts | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/helper/adapter/index.ts b/src/helper/adapter/index.ts
index 95cbb6c4..01e73538 100644
--- a/src/helper/adapter/index.ts
+++ b/src/helper/adapter/index.ts
@@ -47,12 +47,8 @@ export const getRuntimeKey = (): Runtime => {
   const global = globalThis as any
 
   // check if the current runtime supports navigator.userAgent
-  let userAgentSupported = false
-  // In Cloudflare Pages, navigator is undefined in the production environment.
-  // Therefore, it only check navigator.userAgent.
-  try {
-    userAgentSupported = typeof navigator.userAgent === 'string'
-  } catch {}
+  const userAgentSupported =
+    typeof navigator !== 'undefined' && typeof navigator.userAgent === 'string'
 
   // if supported, check the user agent
   if (userAgentSupported) {