From 7e38ae17ea5dba600d0bf7bb6f6fafe7cd25befd Mon Sep 17 00:00:00 2001
From: Aaron O'Mullan <aaron.omullan@gmail.com>
Date: Thu, 7 Oct 2021 22:57:17 +0200
Subject: [PATCH] perf(fetch): fast path Uint8Array in extractBody() (#12351)

---
 ext/fetch/22_body.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ext/fetch/22_body.js b/ext/fetch/22_body.js
index c9702488c7..fcbce43e37 100644
--- a/ext/fetch/22_body.js
+++ b/ext/fetch/22_body.js
@@ -331,6 +331,10 @@
       if (object.type.length !== 0) {
         contentType = object.type;
       }
+    } else if (object instanceof Uint8Array) {
+      // Fast(er) path for common case of Uint8Array
+      const copy = TypedArrayPrototypeSlice(object, 0, object.byteLength);
+      source = copy;
     } else if (ArrayBufferIsView(object) || object instanceof ArrayBuffer) {
       const u8 = ArrayBufferIsView(object)
         ? new Uint8Array(