From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Tue, 4 Aug 2020 09:17:06 -0700
Subject: lib: use non-symbols in isURLInstance check

This slightly changes the conditional used to determine whether or
not something is a URL instance. Since Node.js adds symbols to the URL
not specified by the WHATWG, those symbols are not present in other
implementations (like Blink's) and therefore can cause false negatives.

This fixes that by slightly changing the check to properties present
in all URL instances as specified in the WHATWG spec.

Upstreamed at: https://github.com/nodejs/node/pull/34622.

diff --git a/lib/internal/url.js b/lib/internal/url.js
index 78f5b32745a0436337233e8a4b57b89263effad6..ace274501f2c1f6bb06f600abb850e737c988338 100644
--- a/lib/internal/url.js
+++ b/lib/internal/url.js
@@ -1394,8 +1394,8 @@ function pathToFileURL(filepath) {
 }
 
 function isURLInstance(fileURLOrPath) {
-  return fileURLOrPath != null && fileURLOrPath[searchParams] &&
-    fileURLOrPath[searchParams][searchParams];
+  return fileURLOrPath != null && fileURLOrPath['href'] &&
+    fileURLOrPath['origin'];
 }
 
 function toPathIfFileURL(fileURLOrPath) {
