From 33666c7817fbea06b1f46a2392fb71caa24fcf94 Mon Sep 17 00:00:00 2001
From: 3D-I <480857+3D-I@users.noreply.github.com>
Date: Mon, 6 Apr 2020 22:07:48 +0200
Subject: [PATCH] [ticket/16428] Fix invalid scheme name (empty value)

PHPBB3-16428
---
 phpBB/phpbb/textformatter/s9e/factory.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/phpBB/phpbb/textformatter/s9e/factory.php b/phpBB/phpbb/textformatter/s9e/factory.php
index f82c7b0771..725844e2d3 100644
--- a/phpBB/phpbb/textformatter/s9e/factory.php
+++ b/phpBB/phpbb/textformatter/s9e/factory.php
@@ -218,7 +218,7 @@ class factory implements \phpbb\textformatter\cache_interface
 		{
 			$configurator->urlConfig->disallowScheme($scheme);
 		}
-		foreach (explode(',', $this->config['allowed_schemes_links']) as $scheme)
+		foreach (array_filter(explode(',', $this->config['allowed_schemes_links'])) as $scheme)
 		{
 			$configurator->urlConfig->allowScheme(trim($scheme));
 		}