diff --git a/javascript/src/timing_safe_equal.ts b/javascript/src/timing_safe_equal.ts
index df3650f7a..b65d315d1 100644
--- a/javascript/src/timing_safe_equal.ts
+++ b/javascript/src/timing_safe_equal.ts
@@ -1,4 +1,4 @@
-// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
 // https://github.com/denoland/deno_std/blob/main/crypto/timing_safe_equal.ts
 
 /** Make an assertion, if not `true`, then throw. */
@@ -18,10 +18,14 @@ export function timingSafeEqual(
     return false;
   }
   if (!(a instanceof DataView)) {
-    a = new DataView(ArrayBuffer.isView(a) ? a.buffer : a);
+    a = ArrayBuffer.isView(a)
+      ? new DataView(a.buffer, a.byteOffset, a.byteLength)
+      : new DataView(a);
   }
   if (!(b instanceof DataView)) {
-    b = new DataView(ArrayBuffer.isView(b) ? b.buffer : b);
+    b = ArrayBuffer.isView(b)
+      ? new DataView(b.buffer, b.byteOffset, b.byteLength)
+      : new DataView(b);
   }
   assert(a instanceof DataView);
   assert(b instanceof DataView);