diff --git a/packages/framework/store/src/persistence/blob/utils.ts b/packages/framework/store/src/persistence/blob/utils.ts
index 70a16f87ba12..074e7aa1978e 100644
--- a/packages/framework/store/src/persistence/blob/utils.ts
+++ b/packages/framework/store/src/persistence/blob/utils.ts
@@ -1,7 +1,11 @@
 import { toBase64 } from 'lib0/buffer.js';
+import { digest } from 'lib0/hash/sha256';
 
 export async function sha(input: ArrayBuffer): Promise<string> {
-  const hash = await crypto.subtle.digest('SHA-256', input);
+  const hash =
+    crypto.subtle === undefined // crypto.subtle is not available without a secure context (HTTPS)
+      ? digest(new Uint8Array(input))
+      : await crypto.subtle.digest('SHA-256', input);
 
   // faster conversion from ArrayBuffer to base64 in browser
   return toBase64(new Uint8Array(hash)).replace(/\+/g, '-').replace(/\//g, '_');