From c9371788c55bfa9344cb61e423431edccef5a5d7 Mon Sep 17 00:00:00 2001
From: Aaron Parecki <aaron@parecki.com>
Date: Mon, 30 Jul 2018 18:57:25 -0700
Subject: [PATCH] fix for old php

---
 lib/XRay/Fetcher.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/XRay/Fetcher.php b/lib/XRay/Fetcher.php
index 2ff3e4a..93a9891 100644
--- a/lib/XRay/Fetcher.php
+++ b/lib/XRay/Fetcher.php
@@ -99,7 +99,7 @@ class Fetcher {
         return [
           'error' => 'invalid_content',
           'error_description' => 'The server did not return a recognized content type',
-          'content_type' => $result['headers']['Content-Type'] ?? null,
+          'content_type' => isset($result['headers']['Content-Type']) ? $result['headers']['Content-Type'] : null,
           'url' => $result['url'],
           'code' => $result['code']
         ];