doc: mention reverse proxy and include simple example

styfle · targos · commit 66d90b8063d1 · 2025-10-06T16:17:37.000+02:00
PR-URL: #59736 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
diff --git a/doc/api/url.md b/doc/api/url.md
@@ -1851,6 +1851,16 @@ function getURL(req) {
 }
 ```
 
+The example above assumes well-formed headers are forwarded from a reverse
+proxy to your Node.js server. If you are not using a reverse proxy, you should
+use the example below:
+
+```js
+function getURL(req) {
+  return new URL(req.url || '/', 'https://example.com');
+}
+```
+
 ### `url.resolve(from, to)`
 
 <!-- YAML
