From 60e443b7d61abf538136a2e7521bed0c58a251db Mon Sep 17 00:00:00 2001
From: Aylan Brown <lyh1409@foxmail.com>
Date: Wed, 4 Sep 2019 11:40:09 +0800
Subject: [PATCH] Browser throw `process.env is undefined`

---
 src/browser.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/browser.js b/src/browser.js
index 987d4850..f1c85d11 100644
--- a/src/browser.js
+++ b/src/browser.js
@@ -214,9 +214,14 @@ function load() {
 
 	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
 	// process.env is undefined in sometimes, and it will throw a exception
-	if (!r && typeof process !== 'undefined' && process.env) {
-		r = process.env.DEBUG;
+	try {
+		if (!r && typeof process !== 'undefined' && 'env' in process) {
+			r = process.env.DEBUG;
+		}
+	} catch(error) {
+		// Browser throw `process.env is undefined`
 	}
+	
 
 	return r;
 }