From 6b4ddc6cc610a494d51610b6ead8483576b13fc6 Mon Sep 17 00:00:00 2001
From: Marcin Pietrzak <marcin@iworks.pl>
Date: Fri, 17 Nov 2023 09:39:17 +0100
Subject: [PATCH] Manifest error #4
 https://github.com/iworks/iworks-pwa/issues/4

---
 includes/iworks/pwa/class-iworks-pwa-manifest.php | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/includes/iworks/pwa/class-iworks-pwa-manifest.php b/includes/iworks/pwa/class-iworks-pwa-manifest.php
index 5e9895f..2c6e1cd 100644
--- a/includes/iworks/pwa/class-iworks-pwa-manifest.php
+++ b/includes/iworks/pwa/class-iworks-pwa-manifest.php
@@ -200,8 +200,19 @@ private function print_manifest_json() {
 			}
 			array_unshift( $data['icons'], $one );
 		}
-		$data['shortcuts'] = $this->get_shortcuts();
-		$data['id']        = $this->get_configuration_app_id();
+		/**
+		 * Check shortcuts and use it obnly when not empty.
+		 *
+		 * @since 1.5.7
+		 */
+		$shortcuts = $this->get_shortcuts();
+		if ( ! empty( $shortcuts ) && is_array( $shortcuts ) ) {
+			$data['shortcuts'] = $shortcuts;
+		}
+		/**
+		 * app id
+		 */
+		$data['id'] = $this->get_configuration_app_id();
 		header( 'Content-Type: application/json' );
 		echo json_encode( $data );
 		exit;