From 8ec16ffa169d3ef6c98828d7330a3e712a7671f4 Mon Sep 17 00:00:00 2001
From: Kevin Porras <kevin.porras@pantheon.io>
Date: Tue, 14 Feb 2023 14:06:26 -0600
Subject: [PATCH] Issue #3261858 by DamienMcKenna, heddn: The path of a URI
 with an authority must start with a slash "/" or be empty. Automagically
 fixing the URI. (#164)

Co-authored-by: Lucas Hedding <24691-lucashedding@users.noreply.drupalcode.org>
---
 src/Services/PantheonGuzzle.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Services/PantheonGuzzle.php b/src/Services/PantheonGuzzle.php
index 6743c314..3ce43567 100644
--- a/src/Services/PantheonGuzzle.php
+++ b/src/Services/PantheonGuzzle.php
@@ -166,7 +166,7 @@ public function requestUriAlterForPantheonEnvironment(RequestInterface $request)
     $path_parts = array_filter($path_parts, function ($item) {
         return !empty($item);
     });
-    $uri = $uri->withPath(implode('/', $path_parts));
+    $uri = $uri->withPath('/' . ltrim(implode('/', $path_parts), '/'));
     return $request->withUri($uri);
   }