From a618d14d323f4eb230321a3609bfbc9f23f430c0 Mon Sep 17 00:00:00 2001
From: Niklas von Hertzen <niklasvh@gmail.com>
Date: Tue, 10 Aug 2021 17:44:25 +0800
Subject: [PATCH] fix: make lib loadable on ie9 (#30)

---
 src/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 6ab2710..2de9733 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,7 @@
 const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
 
 // Use a lookup table to find the index.
-const lookup = new Uint8Array(256);
+const lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
 for (let i = 0; i < chars.length; i++) {
     lookup[chars.charCodeAt(i)] = i;
 }