From ba9ad55274de9412f0a2112d1f57eda784615c2f Mon Sep 17 00:00:00 2001
From: Robbie Averill <robbie@silverstripe.com>
Date: Tue, 18 Jul 2017 10:00:50 +1200
Subject: [PATCH] FIX Base URL defaults to a slash in currentURL if not defined
 already

---
 src/Core/Startup/ParameterConfirmationToken.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Core/Startup/ParameterConfirmationToken.php b/src/Core/Startup/ParameterConfirmationToken.php
index 45b363097..7a887839c 100644
--- a/src/Core/Startup/ParameterConfirmationToken.php
+++ b/src/Core/Startup/ParameterConfirmationToken.php
@@ -185,8 +185,7 @@ class ParameterConfirmationToken
     protected function currentURL()
     {
         return Controller::join_links(
-            BASE_URL,
-            '/',
+            BASE_URL ?: '/',
             $this->request->getURL(false)
         );
     }