url: improve isURLThis detection

anonrig · danielleadams · commit 4d0faf4ddc10 · 2023-04-10T20:55:05.000-04:00
PR-URL: #46866 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tierney Cyren <hello@bnb.im> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
diff --git a/lib/internal/url.js b/lib/internal/url.js
@@ -17,6 +17,7 @@ const {
   ObjectGetOwnPropertySymbols,
   ObjectGetPrototypeOf,
   ObjectKeys,
+  ObjectPrototypeHasOwnProperty,
   ReflectApply,
   ReflectGetOwnPropertyDescriptor,
   ReflectOwnKeys,
@@ -568,6 +569,10 @@ function onParseComplete(flags, protocol, username, password,
   initSearchParams(this[searchParams], query);
 }
 
+function isURLThis(self) {
+  return self != null && ObjectPrototypeHasOwnProperty(self, context);
+}
+
 function onParseError(input, flags) {
   throw new ERR_INVALID_URL(input);
 }
