Fix maximum stack size error

Author: MrPropre

README.md

@@ -8,6 +8,7 @@
 - No dependency
 - Accepts base64url and replace non-url compatible chars with base64 standard chars
 - Adds missing padding to base64 string
+- Works even on large data
 - Uses modern functions and shorter solutions
 - Supports ES modules, AMD, CommonJS and IIFE
 
@@ -79,13 +80,6 @@ async function subscribeUserToPush(registration) {
 }
 ```
 
-## Known issues
-
-```txt
-RangeError: Maximum call stack size exceeded
-```
-This error occurs when using too large data (more than 30 kb) to encode a base64 string (e.g. `uint8ArrayToBase64()` and `arrayBufferToBase64()`).
-
 ## Tests
 
 There are no tests for the moment.

src/index.js

@@ -40,7 +40,10 @@ const base64ToUint8Array = base64String => {
 }
 
 const typedArrayToBase64 = typedArray => {
-  return base64Encode(String.fromCharCode(...typedArray))
+  const string = typedArray.reduce((data, byte) => {
+    return data + String.fromCharCode(byte)
+  }, '')
+  return base64Encode(string)
 }
 
 const uint8ArrayToBase64 = typedArrayToBase64