diff --git a/packages/webamp/js/aniParser.ts b/packages/webamp/js/aniParser.ts
index dc43150e..dd08c153 100644
--- a/packages/webamp/js/aniParser.ts
+++ b/packages/webamp/js/aniParser.ts
@@ -1,4 +1,5 @@
 import { RIFFFile } from "riff-file";
+import * as Utils from "./utils";
 import { unpackArray } from "byte-data";
 
 type Chunk = {
@@ -75,12 +76,8 @@ function parseMetadata(chunkData: Uint8Array) {
   };
 }
 
-function base64(u8: Uint8Array): string {
-  return window.btoa(String.fromCharCode.apply(null, u8));
-}
-
 function urlFromData(arr: Uint8Array): string {
-  const arrBase64 = base64(arr);
+  const arrBase64 = Utils.base64FromDataArray(arr);
   return `data:image/x-win-bitmap;base64,${arrBase64}`;
 }
 
diff --git a/packages/webamp/js/utils.ts b/packages/webamp/js/utils.ts
index 8ef394ea..61a1d370 100644
--- a/packages/webamp/js/utils.ts
+++ b/packages/webamp/js/utils.ts
@@ -129,9 +129,12 @@ export const parseIni = (text: string): IniData => {
 export const clamp = (value: number, min: number, max: number): number =>
   Math.min(Math.max(value, min), max);
 
+export const base64FromDataArray = (dataArray: Uint8Array): string => {
+  return window.btoa(String.fromCharCode(...dataArray));
+};
+
 export const base64FromArrayBuffer = (arrayBuffer: ArrayBuffer): string => {
-  const dataView = new Uint8Array(arrayBuffer);
-  return window.btoa(String.fromCharCode(...dataView));
+  return base64FromDataArray(new Uint8Array(arrayBuffer));
 };
 
 // https://stackoverflow.com/a/15832662/1263117