diff --git a/src/helpers/base64.ts b/src/helpers/base64.ts
index 94e6dc352..c531ab55b 100644
--- a/src/helpers/base64.ts
+++ b/src/helpers/base64.ts
@@ -1,7 +1,5 @@
 import { Blob } from 'blob-polyfill'
 
-global['Blob'] = Blob
-
 // https://stackoverflow.com/questions/14967647/encode-decode-image-with-base64-breaks-image
 function fixBinary(bin) {
   var length = bin.length