Init. Map does not function and only working on backend at the moment.

node_modules/has-proto/index.js

@@ -0,0 +1,15 @@
+'use strict';
+
+var test = {
+	__proto__: null,
+	foo: {}
+};
+
+var $Object = Object;
+
+/** @type {import('.')} */
+module.exports = function hasProto() {
+	// @ts-expect-error: TS errors on an inherited property for some reason
+	return { __proto__: test }.foo === test.foo
+		&& !(test instanceof $Object);
+};