From f597f3b378b3df741c718039393b75dc8f331ae7 Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <hypolite@mrpetovan.com>
Date: Mon, 25 Feb 2019 03:39:40 -0500
Subject: [PATCH] Protect access to rel attribute in Network\Probe

---
 src/Network/Probe.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Network/Probe.php b/src/Network/Probe.php
index deec3cf2dc..b061595d26 100644
--- a/src/Network/Probe.php
+++ b/src/Network/Probe.php
@@ -156,7 +156,7 @@ class Probe
 				continue;
 			}
 
-			if (($attributes["rel"] == "lrdd") && !empty($attributes["template"])) {
+			if (!empty($attributes["rel"]) && $attributes["rel"] == "lrdd" && !empty($attributes["template"])) {
 				$type = (empty($attributes["type"]) ? '' : $attributes["type"]);
 
 				$lrdd[$type] = $attributes["template"];