From 79b419f076c1e99d2b6386c59bd96e731f3a54b0 Mon Sep 17 00:00:00 2001
From: Masahiro Hayashi <masaha03@users.noreply.github.com>
Date: Tue, 8 Feb 2022 12:40:04 +0900
Subject: [PATCH] Check process.env exists

Some build systems or other sometimes add `window.process` in browser but not always add  `window.process.env`.
For example, a project created with Nuxt3 will crash due to this problem.
Please check `process.env` exists or not.
---
 src/utils/utf8.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/utils/utf8.ts b/src/utils/utf8.ts
index 49b3495d..5ee4efba 100644
--- a/src/utils/utf8.ts
+++ b/src/utils/utf8.ts
@@ -1,7 +1,7 @@
 import { UINT32_MAX } from "./int";
 
 const TEXT_ENCODING_AVAILABLE =
-  (typeof process === "undefined" || process.env["TEXT_ENCODING"] !== "never") &&
+  (typeof process === "undefined" || process.env === undefined || process.env["TEXT_ENCODING"] !== "never") &&
   typeof TextEncoder !== "undefined" &&
   typeof TextDecoder !== "undefined";
 
@@ -91,7 +91,7 @@ export function utf8EncodeJs(str: string, output: Uint8Array, outputOffset: numb
 const sharedTextEncoder = TEXT_ENCODING_AVAILABLE ? new TextEncoder() : undefined;
 export const TEXT_ENCODER_THRESHOLD = !TEXT_ENCODING_AVAILABLE
   ? UINT32_MAX
-  : typeof process !== "undefined" && process.env["TEXT_ENCODING"] !== "force"
+  : typeof process !== "undefined" && process.env !== undefined && process.env["TEXT_ENCODING"] !== "force"
   ? 200
   : 0;
 
@@ -159,7 +159,7 @@ export function utf8DecodeJs(bytes: Uint8Array, inputOffset: number, byteLength:
 const sharedTextDecoder = TEXT_ENCODING_AVAILABLE ? new TextDecoder() : null;
 export const TEXT_DECODER_THRESHOLD = !TEXT_ENCODING_AVAILABLE
   ? UINT32_MAX
-  : typeof process !== "undefined" && process.env["TEXT_DECODER"] !== "force"
+  : typeof process !== "undefined" && process.env !== undefined && process.env["TEXT_DECODER"] !== "force"
   ? 200
   : 0;