From c3c85d8a0de342f4132cb3d0c1353c69b1a9f9a1 Mon Sep 17 00:00:00 2001
From: Kazumi Inada <timer.ground.gm@gmail.com>
Date: Sun, 5 Dec 2021 15:48:12 +0900
Subject: [PATCH] fix: Add type check for process.env

---
 packages/database/src/api/Database.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/database/src/api/Database.ts b/packages/database/src/api/Database.ts
index 3b89056a4ad..bb56e3d3e1a 100644
--- a/packages/database/src/api/Database.ts
+++ b/packages/database/src/api/Database.ts
@@ -128,7 +128,7 @@ export function repoManagerDatabaseFromApp(
   let isEmulator: boolean;
 
   let dbEmulatorHost: string | undefined = undefined;
-  if (typeof process !== 'undefined') {
+  if (typeof process !== 'undefined' && process.env) {
     dbEmulatorHost = process.env[FIREBASE_DATABASE_EMULATOR_HOST_VAR];
   }