From 20580bfdcd261c9dae99714ddd5bfc2424702ab1 Mon Sep 17 00:00:00 2001
From: Eric Daams <eric@164a.com>
Date: Mon, 28 Aug 2017 11:01:55 +0930
Subject: [PATCH] Check that getallheaders has returned an array

Closes #209
---
 lib/class-wp-rest-oauth1.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/class-wp-rest-oauth1.php b/lib/class-wp-rest-oauth1.php
index 268001f..edc2538 100644
--- a/lib/class-wp-rest-oauth1.php
+++ b/lib/class-wp-rest-oauth1.php
@@ -77,9 +77,11 @@ public function get_authorization_header() {
 			$headers = getallheaders();
 
 			// Check for the authoization header case-insensitively
-			foreach ( $headers as $key => $value ) {
-				if ( strtolower( $key ) === 'authorization' ) {
-					return $value;
+			if ( is_array( $headers ) ) {
+				foreach ( $headers as $key => $value ) {
+					if ( strtolower( $key ) === 'authorization' ) {
+						return $value;
+					}
 				}
 			}
 		}