From 884143218fad0e18f7553aaf079d52de703f7601 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Thu, 27 Jan 2022 13:36:36 +0100
Subject: refactor: update runtime code for primordial checks for "instanceof"
 (#13497)

---
 ext/fetch/20_headers.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'ext/fetch/20_headers.js')

diff --git a/ext/fetch/20_headers.js b/ext/fetch/20_headers.js
index b1299fb1b..94f68df42 100644
--- a/ext/fetch/20_headers.js
+++ b/ext/fetch/20_headers.js
@@ -263,7 +263,7 @@
      * @param {string} value
      */
     append(name, value) {
-      webidl.assertBranded(this, Headers);
+      webidl.assertBranded(this, HeadersPrototype);
       const prefix = "Failed to execute 'append' on 'Headers'";
       webidl.requiredArguments(arguments.length, 2, { prefix });
       name = webidl.converters["ByteString"](name, {
@@ -354,7 +354,7 @@
      * @param {string} value
      */
     set(name, value) {
-      webidl.assertBranded(this, Headers);
+      webidl.assertBranded(this, HeadersPrototype);
       const prefix = "Failed to execute 'set' on 'Headers'";
       webidl.requiredArguments(arguments.length, 2, { prefix });
       name = webidl.converters["ByteString"](name, {
@@ -411,6 +411,7 @@
   webidl.mixinPairIterable("Headers", Headers, _iterableHeaders, 0, 1);
 
   webidl.configurePrototype(Headers);
+  const HeadersPrototype = Headers.prototype;
 
   webidl.converters["HeadersInit"] = (V, opts) => {
     // Union for (sequence<sequence<ByteString>> or record<ByteString, ByteString>)
@@ -428,7 +429,7 @@
   };
   webidl.converters["Headers"] = webidl.createInterfaceConverter(
     "Headers",
-    Headers,
+    Headers.prototype,
   );
 
   /**
-- 
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