From 1a5b47a1080757170bf8aef9a138b2e02e85c487 Mon Sep 17 00:00:00 2001
From: Michael Babker <mbabker@flbab.com>
Date: Sat, 22 Apr 2017 12:09:19 -0500
Subject: [PATCH] Account for differences in 3.x and 4.x HTTP client

---
 .../com_patchtester/PatchTester/Model/PullsModel.php   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/administrator/components/com_patchtester/PatchTester/Model/PullsModel.php b/administrator/components/com_patchtester/PatchTester/Model/PullsModel.php
index e1cfe9d..cf405c6 100644
--- a/administrator/components/com_patchtester/PatchTester/Model/PullsModel.php
+++ b/administrator/components/com_patchtester/PatchTester/Model/PullsModel.php
@@ -344,7 +344,15 @@ class PullsModel extends \JModelDatabase
 
 			if (isset($pullsResponse->headers['Link']))
 			{
-				preg_match('/(\?page=[0-9]&per_page=' . $batchSize . '+>; rel=\"last\")/', $pullsResponse->headers['Link'], $matches);
+				$linkHeader = $pullsResponse->headers['Link'];
+
+				// The `joomla/http` 2.0 package uses PSR-7 Responses which has a different format for headers, check for this
+				if (is_array($linkHeader))
+				{
+					$linkHeader = $linkHeader[0];
+				}
+
+				preg_match('/(\?page=[0-9]&per_page=' . $batchSize . '+>; rel=\"last\")/', $linkHeader, $matches);
 
 				if ($matches && isset($matches[0]))
 				{