From fd69cd10d3c424ebe21f458d9606961b2fa30717 Mon Sep 17 00:00:00 2001
From: aidant <15520814+aidant@users.noreply.github.com>
Date: Fri, 11 Nov 2022 16:04:25 +1100
Subject: [PATCH] http: add debug log for ERR_UNESCAPED_CHARACTERS

When encountering ERR_UNESCAPED_CHARACTERS on large applications it can
be unclear which request has caused this error. Even when setting
NODE_DEBUG=http there is no information about this error since it's
thrown before any debug logs. This patch adds a debug log that contains
the invalid path.
---
 lib/_http_client.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/_http_client.js b/lib/_http_client.js
index ef58f66f6a97e5..79ed2c8bc9b2d3 100644
--- a/lib/_http_client.js
+++ b/lib/_http_client.js
@@ -173,8 +173,10 @@ function ClientRequest(input, options, cb) {
 
   if (options.path) {
     const path = String(options.path);
-    if (RegExpPrototypeExec(INVALID_PATH_REGEX, path) !== null)
+    if (RegExpPrototypeExec(INVALID_PATH_REGEX, path) !== null) {
+      debug('Path contains unescaped characters: "%s"', path);
       throw new ERR_UNESCAPED_CHARACTERS('Request path');
+    }
   }
 
   if (protocol !== expectedProtocol) {