From c15c1dfb0b131ef020755a2f76cab81ede1144e5 Mon Sep 17 00:00:00 2001
From: Cyb10101 <cyb10101@gmail.com>
Date: Fri, 9 Apr 2021 21:55:08 +0200
Subject: [PATCH] if backend request 'op' is empty fixed

---
 backend.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend.php b/backend.php
index 98c8eace6..b2ff46dca 100644
--- a/backend.php
+++ b/backend.php
@@ -2,7 +2,7 @@
 	set_include_path(__DIR__ ."/include" . PATH_SEPARATOR .
 		get_include_path());
 
-	$op = $_REQUEST["op"];
+	$op = $_REQUEST['op'] ?? '';
 	$method = !empty($_REQUEST['subop']) ?
 		$_REQUEST['subop'] :
 		$_REQUEST["method"] ?? false;